Come convertire un numero in parole in Java


132

Al momento disponiamo di un meccanismo grezzo per convertire i numeri in parole (ad esempio utilizzando alcuni array statici) e basato sulla dimensione del numero che lo traduce in un testo inglese. Ma stiamo incontrando problemi per numeri che sono enormi.

10183 = Ten thousand one hundred eighty three
90 = Ninety
5888 = Five thousand eight hundred eighty eight

Esiste una funzione facile da usare in una qualsiasi delle librerie matematiche che posso usare per questo scopo?


1
Ecco lo strumento online che potrebbe esserti utile: helloacm.com/tools/convert-arabic-numerals-to-eng-ish-words
doctorlai

Risposte:


106

Ecco il codice, non credo ci sia alcun metodo in SE.

Fondamentalmente converte il numero in stringa e analizza la stringa e lo associa al peso

per esempio

1000

1viene trattato come migliaia di posizioni e 1viene mappato "one"e migliaia a causa della posizione


Questo è il codice dal sito Web:

Inglese

import java.text.DecimalFormat;

public class EnglishNumberToWords {

  private static final String[] tensNames = {
    "",
    " ten",
    " twenty",
    " thirty",
    " forty",
    " fifty",
    " sixty",
    " seventy",
    " eighty",
    " ninety"
  };

  private static final String[] numNames = {
    "",
    " one",
    " two",
    " three",
    " four",
    " five",
    " six",
    " seven",
    " eight",
    " nine",
    " ten",
    " eleven",
    " twelve",
    " thirteen",
    " fourteen",
    " fifteen",
    " sixteen",
    " seventeen",
    " eighteen",
    " nineteen"
  };

  private EnglishNumberToWords() {}

  private static String convertLessThanOneThousand(int number) {
    String soFar;

    if (number % 100 < 20){
      soFar = numNames[number % 100];
      number /= 100;
    }
    else {
      soFar = numNames[number % 10];
      number /= 10;

      soFar = tensNames[number % 10] + soFar;
      number /= 10;
    }
    if (number == 0) return soFar;
    return numNames[number] + " hundred" + soFar;
  }


  public static String convert(long number) {
    // 0 to 999 999 999 999
    if (number == 0) { return "zero"; }

    String snumber = Long.toString(number);

    // pad with "0"
    String mask = "000000000000";
    DecimalFormat df = new DecimalFormat(mask);
    snumber = df.format(number);

    // XXXnnnnnnnnn
    int billions = Integer.parseInt(snumber.substring(0,3));
    // nnnXXXnnnnnn
    int millions  = Integer.parseInt(snumber.substring(3,6));
    // nnnnnnXXXnnn
    int hundredThousands = Integer.parseInt(snumber.substring(6,9));
    // nnnnnnnnnXXX
    int thousands = Integer.parseInt(snumber.substring(9,12));

    String tradBillions;
    switch (billions) {
    case 0:
      tradBillions = "";
      break;
    case 1 :
      tradBillions = convertLessThanOneThousand(billions)
      + " billion ";
      break;
    default :
      tradBillions = convertLessThanOneThousand(billions)
      + " billion ";
    }
    String result =  tradBillions;

    String tradMillions;
    switch (millions) {
    case 0:
      tradMillions = "";
      break;
    case 1 :
      tradMillions = convertLessThanOneThousand(millions)
         + " million ";
      break;
    default :
      tradMillions = convertLessThanOneThousand(millions)
         + " million ";
    }
    result =  result + tradMillions;

    String tradHundredThousands;
    switch (hundredThousands) {
    case 0:
      tradHundredThousands = "";
      break;
    case 1 :
      tradHundredThousands = "one thousand ";
      break;
    default :
      tradHundredThousands = convertLessThanOneThousand(hundredThousands)
         + " thousand ";
    }
    result =  result + tradHundredThousands;

    String tradThousand;
    tradThousand = convertLessThanOneThousand(thousands);
    result =  result + tradThousand;

    // remove extra spaces!
    return result.replaceAll("^\\s+", "").replaceAll("\\b\\s{2,}\\b", " ");
  }

  /**
   * testing
   * @param args
   */
  public static void main(String[] args) {
    System.out.println("*** " + EnglishNumberToWords.convert(0));
    System.out.println("*** " + EnglishNumberToWords.convert(1));
    System.out.println("*** " + EnglishNumberToWords.convert(16));
    System.out.println("*** " + EnglishNumberToWords.convert(100));
    System.out.println("*** " + EnglishNumberToWords.convert(118));
    System.out.println("*** " + EnglishNumberToWords.convert(200));
    System.out.println("*** " + EnglishNumberToWords.convert(219));
    System.out.println("*** " + EnglishNumberToWords.convert(800));
    System.out.println("*** " + EnglishNumberToWords.convert(801));
    System.out.println("*** " + EnglishNumberToWords.convert(1316));
    System.out.println("*** " + EnglishNumberToWords.convert(1000000));
    System.out.println("*** " + EnglishNumberToWords.convert(2000000));
    System.out.println("*** " + EnglishNumberToWords.convert(3000200));
    System.out.println("*** " + EnglishNumberToWords.convert(700000));
    System.out.println("*** " + EnglishNumberToWords.convert(9000000));
    System.out.println("*** " + EnglishNumberToWords.convert(9001000));
    System.out.println("*** " + EnglishNumberToWords.convert(123456789));
    System.out.println("*** " + EnglishNumberToWords.convert(2147483647));
    System.out.println("*** " + EnglishNumberToWords.convert(3000000010L));

    /*
     *** zero
     *** one
     *** sixteen
     *** one hundred
     *** one hundred eighteen
     *** two hundred
     *** two hundred nineteen
     *** eight hundred
     *** eight hundred one
     *** one thousand three hundred sixteen
     *** one million
     *** two millions
     *** three millions two hundred
     *** seven hundred thousand
     *** nine millions
     *** nine millions one thousand
     *** one hundred twenty three millions four hundred
     **      fifty six thousand seven hundred eighty nine
     *** two billion one hundred forty seven millions
     **      four hundred eighty three thousand six hundred forty seven
     *** three billion ten
     **/
  }
}

Français Molto diverso dalla versione inglese ma il francese è molto più difficile!

package com.rgagnon.howto;

import java.text.*;

class FrenchNumberToWords {
  private static final String[] dizaineNames = {
    "",
    "",
    "vingt",
    "trente",
    "quarante",
    "cinquante",
    "soixante",
    "soixante",
    "quatre-vingt",
    "quatre-vingt"
  };

  private static final String[] uniteNames1 = {
    "",
    "un",
    "deux",
    "trois",
    "quatre",
    "cinq",
    "six",
    "sept",
    "huit",
    "neuf",
    "dix",
    "onze",
    "douze",
    "treize",
    "quatorze",
    "quinze",
    "seize",
    "dix-sept",
    "dix-huit",
    "dix-neuf"
  };

  private static final String[] uniteNames2 = {
    "",
    "",
    "deux",
    "trois",
    "quatre",
    "cinq",
    "six",
    "sept",
    "huit",
    "neuf",
    "dix"
  };

  private FrenchNumberToWords() {}

  private static String convertZeroToHundred(int number) {

    int laDizaine = number / 10;
    int lUnite = number % 10;
    String resultat = "";

    switch (laDizaine) {
    case 1 :
    case 7 :
    case 9 :
      lUnite = lUnite + 10;
      break;
    default:
    }

    // séparateur "-" "et"  ""
    String laLiaison = "";
    if (laDizaine > 1) {
      laLiaison = "-";
    }
    // cas particuliers
    switch (lUnite) {
    case 0:
      laLiaison = "";
      break;
    case 1 :
      if (laDizaine == 8) {
        laLiaison = "-";
      }
      else {
        laLiaison = " et ";
      }
      break;
    case 11 :
      if (laDizaine==7) {
        laLiaison = " et ";
      }
      break;
    default:
    }

    // dizaines en lettres
    switch (laDizaine) {
    case 0:
      resultat = uniteNames1[lUnite];
      break;
    case 8 :
      if (lUnite == 0) {
        resultat = dizaineNames[laDizaine];
      }
      else {
        resultat = dizaineNames[laDizaine]
                                + laLiaison + uniteNames1[lUnite];
      }
      break;
    default :
      resultat = dizaineNames[laDizaine]
                              + laLiaison + uniteNames1[lUnite];
    }
    return resultat;
  }

  private static String convertLessThanOneThousand(int number) {

    int lesCentaines = number / 100;
    int leReste = number % 100;
    String sReste = convertZeroToHundred(leReste);

    String resultat;
    switch (lesCentaines) {
    case 0:
      resultat = sReste;
      break;
    case 1 :
      if (leReste > 0) {
        resultat = "cent " + sReste;
      }
      else {
        resultat = "cent";
      }
      break;
    default :
      if (leReste > 0) {
        resultat = uniteNames2[lesCentaines] + " cent " + sReste;
      }
      else {
        resultat = uniteNames2[lesCentaines] + " cents";
      }
    }
    return resultat;
  }

  public static String convert(long number) {
    // 0 à 999 999 999 999
    if (number == 0) { return "zéro"; }

    String snumber = Long.toString(number);

    // pad des "0"
    String mask = "000000000000";
    DecimalFormat df = new DecimalFormat(mask);
    snumber = df.format(number);

    // XXXnnnnnnnnn
    int lesMilliards = Integer.parseInt(snumber.substring(0,3));
    // nnnXXXnnnnnn
    int lesMillions  = Integer.parseInt(snumber.substring(3,6));
    // nnnnnnXXXnnn
    int lesCentMille = Integer.parseInt(snumber.substring(6,9));
    // nnnnnnnnnXXX
    int lesMille = Integer.parseInt(snumber.substring(9,12));

    String tradMilliards;
    switch (lesMilliards) {
    case 0:
      tradMilliards = "";
      break;
    case 1 :
      tradMilliards = convertLessThanOneThousand(lesMilliards)
         + " milliard ";
      break;
    default :
      tradMilliards = convertLessThanOneThousand(lesMilliards)
         + " milliards ";
    }
    String resultat =  tradMilliards;

    String tradMillions;
    switch (lesMillions) {
    case 0:
      tradMillions = "";
      break;
    case 1 :
      tradMillions = convertLessThanOneThousand(lesMillions)
         + " million ";
      break;
    default :
      tradMillions = convertLessThanOneThousand(lesMillions)
         + " millions ";
    }
    resultat =  resultat + tradMillions;

    String tradCentMille;
    switch (lesCentMille) {
    case 0:
      tradCentMille = "";
      break;
    case 1 :
      tradCentMille = "mille ";
      break;
    default :
      tradCentMille = convertLessThanOneThousand(lesCentMille)
         + " mille ";
    }
    resultat =  resultat + tradCentMille;

    String tradMille;
    tradMille = convertLessThanOneThousand(lesMille);
    resultat =  resultat + tradMille;

    return resultat;
  }

  public static void main(String[] args) {
    System.out.println("*** " + FrenchNumberToWords.convert(0));
    System.out.println("*** " + FrenchNumberToWords.convert(9));
    System.out.println("*** " + FrenchNumberToWords.convert(19));
    System.out.println("*** " + FrenchNumberToWords.convert(21));
    System.out.println("*** " + FrenchNumberToWords.convert(28));
    System.out.println("*** " + FrenchNumberToWords.convert(71));
    System.out.println("*** " + FrenchNumberToWords.convert(72));
    System.out.println("*** " + FrenchNumberToWords.convert(80));
    System.out.println("*** " + FrenchNumberToWords.convert(81));
    System.out.println("*** " + FrenchNumberToWords.convert(89));
    System.out.println("*** " + FrenchNumberToWords.convert(90));
    System.out.println("*** " + FrenchNumberToWords.convert(91));
    System.out.println("*** " + FrenchNumberToWords.convert(97));
    System.out.println("*** " + FrenchNumberToWords.convert(100));
    System.out.println("*** " + FrenchNumberToWords.convert(101));
    System.out.println("*** " + FrenchNumberToWords.convert(110));
    System.out.println("*** " + FrenchNumberToWords.convert(120));
    System.out.println("*** " + FrenchNumberToWords.convert(200));
    System.out.println("*** " + FrenchNumberToWords.convert(201));
    System.out.println("*** " + FrenchNumberToWords.convert(232));
    System.out.println("*** " + FrenchNumberToWords.convert(999));
    System.out.println("*** " + FrenchNumberToWords.convert(1000));
    System.out.println("*** " + FrenchNumberToWords.convert(1001));
    System.out.println("*** " + FrenchNumberToWords.convert(10000));
    System.out.println("*** " + FrenchNumberToWords.convert(10001));
    System.out.println("*** " + FrenchNumberToWords.convert(100000));
    System.out.println("*** " + FrenchNumberToWords.convert(2000000));
    System.out.println("*** " + FrenchNumberToWords.convert(3000000000L));
    System.out.println("*** " + FrenchNumberToWords.convert(2147483647));
    /*
     *** OUTPUT
     *** zéro
     *** neuf
     *** dix-neuf
     *** vingt et un
     *** vingt-huit
     *** soixante et onze
     *** soixante-douze
     *** quatre-vingt
     *** quatre-vingt-un
     *** quatre-vingt-neuf
     *** quatre-vingt-dix
     *** quatre-vingt-onze
     *** quatre-vingt-dix-sept
     *** cent
     *** cent un
     *** cent dix
     *** cent vingt
     *** deux cents
     *** deux cent un
     *** deux cent trente-deux
     *** neuf cent quatre-vingt-dix-neuf
     *** mille
     *** mille un
     *** dix mille
     *** dix mille un
     *** cent mille
     *** deux millions
     *** trois milliards
     *** deux milliards cent quarante-sept millions
     **          quatre cent quatre-vingt-trois mille six cent quarante-sept
     */
  }
}

Puoi gestire la conversione "dollaro e cent" chiamando il metodo "convert" due volte.

String phrase = "12345.67" ;
Float num = new Float( phrase ) ;
int dollars = (int)Math.floor( num ) ;
int cent = (int)Math.floor( ( num - dollars ) * 100.0f ) ;

String s = "$ " + EnglishNumberToWords.convert( dollars ) + " and "
           + EnglishNumberToWords.convert( cent ) + " cents" ;

Un altro modo per utilizzare una funzione integrata del DBMS (se disponibile). Per Oracle

SQL> select to_char(to_date(873,'J'), 'JSP') as converted_form from dual;

CONVERTED_FORM
---------------------------
EIGHT HUNDRED SEVENTY-THREE

SQL>
'JSP' means :
J : the Julian format.
SP : spells the word for the number passed to to_date

9
Metodo limitato: non converte numeri grandi né supporta numeri decimali.
marcolopes,

10
Sebbene questa risposta abbia più di 3 anni, sarebbe utile includere qui le parti essenziali del collegamento nel caso in cui il collegamento non fosse mai disponibile.
Taryn

1
Ho preso il tuo codice per la versione francese e l'ho portato su Groovy facendolo funzionare per numeri più grandi. È abbastanza facile farlo funzionare con quelli ancora più grandi. Nel caso in cui qualcuno sia interessato, è qui . Grazie per il materiale di base!
sensei,

Il programma fornisce un output errato quando si immette 100500 ma in altri casi funziona
correttamente

@adeshsingh mentre sei lì. potresti aggiustare il codice e aggiornare la risposta. questo era ~ 7 anni codice
Jigar Joshi

61

Poiché non è possibile disporre di un algoritmo generale per ogni locale, no. Devi implementare il tuo algoritmo per ogni locale che stai supportando.

** MODIFICA **

Solo per diamine, ho giocato fino a quando non ho preso questa classe. Non può essere visualizzato a Long.MIN_VALUEcausa delle restrizioni sui bit ... ma presumo che potrebbe essere modificato e cambiare i longtipi di valore in doubleper numeri decimali o anche più grandiPuò visualizzare qualsiasi numero fino a 66 cifre e 26 decimali utilizzando una rappresentazione in stringa del numero. Puoi aggiungere altro ScaleUnitper più decimali ...

/**
 * This class will convert numeric values into an english representation
 * 
 * For units, see : http://www.jimloy.com/math/billion.htm
 * 
 * @author yanick.rochon@gmail.com
 */
public class NumberToWords {

    static public class ScaleUnit {
        private int exponent;
        private String[] names;
        private ScaleUnit(int exponent, String...names) {
            this.exponent = exponent;
            this.names = names;
        }
        public int getExponent() {
            return exponent;
        }
        public String getName(int index) {
            return names[index];
        }
    }

    /**
     * See http://www.wordiq.com/definition/Names_of_large_numbers
     */
    static private ScaleUnit[] SCALE_UNITS = new ScaleUnit[] {
        new ScaleUnit(63, "vigintillion", "decilliard"),
        new ScaleUnit(60, "novemdecillion", "decillion"),
        new ScaleUnit(57, "octodecillion", "nonilliard"),
        new ScaleUnit(54, "septendecillion", "nonillion"),
        new ScaleUnit(51, "sexdecillion", "octilliard"),
        new ScaleUnit(48, "quindecillion", "octillion"),
        new ScaleUnit(45, "quattuordecillion", "septilliard"),
        new ScaleUnit(42, "tredecillion", "septillion"),
        new ScaleUnit(39, "duodecillion", "sextilliard"),
        new ScaleUnit(36, "undecillion", "sextillion"),
        new ScaleUnit(33, "decillion", "quintilliard"),
        new ScaleUnit(30, "nonillion", "quintillion"),
        new ScaleUnit(27, "octillion", "quadrilliard"),
        new ScaleUnit(24, "septillion", "quadrillion"),
        new ScaleUnit(21, "sextillion", "trilliard"),
        new ScaleUnit(18, "quintillion", "trillion"),
        new ScaleUnit(15, "quadrillion", "billiard"),
        new ScaleUnit(12, "trillion", "billion"),
        new ScaleUnit(9, "billion", "milliard"),
        new ScaleUnit(6, "million", "million"),
        new ScaleUnit(3, "thousand", "thousand"),
        new ScaleUnit(2, "hundred", "hundred"),
        //new ScaleUnit(1, "ten", "ten"),
        //new ScaleUnit(0, "one", "one"),
        new ScaleUnit(-1, "tenth", "tenth"),
        new ScaleUnit(-2, "hundredth", "hundredth"),
        new ScaleUnit(-3, "thousandth", "thousandth"),
        new ScaleUnit(-4, "ten-thousandth", "ten-thousandth"),
        new ScaleUnit(-5, "hundred-thousandth", "hundred-thousandth"),
        new ScaleUnit(-6, "millionth", "millionth"),
        new ScaleUnit(-7, "ten-millionth", "ten-millionth"),
        new ScaleUnit(-8, "hundred-millionth", "hundred-millionth"),
        new ScaleUnit(-9, "billionth", "milliardth"),
        new ScaleUnit(-10, "ten-billionth", "ten-milliardth"),
        new ScaleUnit(-11, "hundred-billionth", "hundred-milliardth"),
        new ScaleUnit(-12, "trillionth", "billionth"),
        new ScaleUnit(-13, "ten-trillionth", "ten-billionth"),
        new ScaleUnit(-14, "hundred-trillionth", "hundred-billionth"),
        new ScaleUnit(-15, "quadrillionth", "billiardth"),
        new ScaleUnit(-16, "ten-quadrillionth", "ten-billiardth"),
        new ScaleUnit(-17, "hundred-quadrillionth", "hundred-billiardth"),
        new ScaleUnit(-18, "quintillionth", "trillionth"),
        new ScaleUnit(-19, "ten-quintillionth", "ten-trillionth"),
        new ScaleUnit(-20, "hundred-quintillionth", "hundred-trillionth"),
        new ScaleUnit(-21, "sextillionth", "trilliardth"),
        new ScaleUnit(-22, "ten-sextillionth", "ten-trilliardth"),
        new ScaleUnit(-23, "hundred-sextillionth", "hundred-trilliardth"),
        new ScaleUnit(-24, "septillionth","quadrillionth"),
        new ScaleUnit(-25, "ten-septillionth","ten-quadrillionth"),
        new ScaleUnit(-26, "hundred-septillionth","hundred-quadrillionth"),
    };

    static public enum Scale {
        SHORT,
        LONG;

        public String getName(int exponent) {
            for (ScaleUnit unit : SCALE_UNITS) {
                if (unit.getExponent() == exponent) {
                    return unit.getName(this.ordinal());
                }
            }
            return ""; 
        }
    }

    /**
     * Change this scale to support American and modern British value (short scale)
     * or Traditional British value (long scale)
     */
    static public Scale SCALE = Scale.SHORT; 


    static abstract public class AbstractProcessor {

        static protected final String SEPARATOR = " ";
        static protected final int NO_VALUE = -1;

        protected List<Integer> getDigits(long value) {
            ArrayList<Integer> digits = new ArrayList<Integer>();
            if (value == 0) {
                digits.add(0);
            } else {
                while (value > 0) {
                    digits.add(0, (int) value % 10);
                    value /= 10;
                }
            }
            return digits;
        }

        public String getName(long value) {
            return getName(Long.toString(value));
        }

        public String getName(double value) {
            return getName(Double.toString(value));
        }

        abstract public String getName(String value);
    }

    static public class UnitProcessor extends AbstractProcessor {

        static private final String[] TOKENS = new String[] {
            "one", "two", "three", "four", "five", "six", "seven", "eight", "nine",
            "ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen"
        };

        @Override
        public String getName(String value) {
            StringBuilder buffer = new StringBuilder();

            int offset = NO_VALUE;
            int number;
            if (value.length() > 3) {
                number = Integer.valueOf(value.substring(value.length() - 3), 10);
            } else {
                number = Integer.valueOf(value, 10);
            }
            number %= 100;
            if (number < 10) {
                offset = (number % 10) - 1;
                //number /= 10;
            } else if (number < 20) {
                offset = (number % 20) - 1;
                //number /= 100;
            }

            if (offset != NO_VALUE && offset < TOKENS.length) {
                buffer.append(TOKENS[offset]);
            }

            return buffer.toString();
        }

    }

    static public class TensProcessor extends AbstractProcessor {

        static private final String[] TOKENS = new String[] {
            "twenty", "thirty", "forty", "fifty", "sixty", "seventy", "eighty", "ninety"
        };

        static private final String UNION_SEPARATOR = "-";

        private UnitProcessor unitProcessor = new UnitProcessor();

        @Override
        public String getName(String value) {
            StringBuilder buffer = new StringBuilder();
            boolean tensFound = false;

            int number;
            if (value.length() > 3) {
                number = Integer.valueOf(value.substring(value.length() - 3), 10);
            } else {
                number = Integer.valueOf(value, 10);
            }
            number %= 100;   // keep only two digits
            if (number >= 20) {
                buffer.append(TOKENS[(number / 10) - 2]);
                number %= 10;
                tensFound = true;
            } else {
                number %= 20;
            }

            if (number != 0) {
                if (tensFound) {
                    buffer.append(UNION_SEPARATOR);
                }
                buffer.append(unitProcessor.getName(number));
            }

            return buffer.toString();
        }
    }

    static public class HundredProcessor extends AbstractProcessor {

        private int EXPONENT = 2;

        private UnitProcessor unitProcessor = new UnitProcessor();
        private TensProcessor tensProcessor = new TensProcessor();

        @Override
        public String getName(String value) {
            StringBuilder buffer = new StringBuilder();

            int number;
            if (value.isEmpty()) {
                number = 0;
            } else if (value.length() > 4) {
                number = Integer.valueOf(value.substring(value.length() - 4), 10);
            } else {
                number = Integer.valueOf(value, 10);
            }
            number %= 1000;  // keep at least three digits

            if (number >= 100) {
                buffer.append(unitProcessor.getName(number / 100));
                buffer.append(SEPARATOR);
                buffer.append(SCALE.getName(EXPONENT));
            }

            String tensName = tensProcessor.getName(number % 100);

            if (!tensName.isEmpty() && (number >= 100)) {
                buffer.append(SEPARATOR);
            }
            buffer.append(tensName);

            return buffer.toString();
        }
    }

    static public class CompositeBigProcessor extends AbstractProcessor {

        private HundredProcessor hundredProcessor = new HundredProcessor();
        private AbstractProcessor lowProcessor;
        private int exponent;

        public CompositeBigProcessor(int exponent) {
            if (exponent <= 3) {
                lowProcessor = hundredProcessor;
            } else {
                lowProcessor = new CompositeBigProcessor(exponent - 3);
            }
            this.exponent = exponent;
        }

        public String getToken() {
            return SCALE.getName(getPartDivider());
        }

        protected AbstractProcessor getHighProcessor() {
            return hundredProcessor;
        }

        protected AbstractProcessor getLowProcessor() {
            return lowProcessor;
        }

        public int getPartDivider() {
            return exponent;
        }

        @Override
        public String getName(String value) {
            StringBuilder buffer = new StringBuilder();

            String high, low;
            if (value.length() < getPartDivider()) {
                high = "";
                low = value;
            } else {
                int index = value.length() - getPartDivider();
                high = value.substring(0, index);
                low = value.substring(index);
            }

            String highName = getHighProcessor().getName(high);
            String lowName = getLowProcessor().getName(low);

            if (!highName.isEmpty()) {
                buffer.append(highName);
                buffer.append(SEPARATOR);
                buffer.append(getToken());

                if (!lowName.isEmpty()) {
                    buffer.append(SEPARATOR);
                }
            }

            if (!lowName.isEmpty()) {
                buffer.append(lowName);
            }

            return buffer.toString();
        }
    }

    static public class DefaultProcessor extends AbstractProcessor {

        static private String MINUS = "minus";
        static private String UNION_AND = "and";

        static private String ZERO_TOKEN = "zero";

        private AbstractProcessor processor = new CompositeBigProcessor(63);

        @Override
        public String getName(String value) {
            boolean negative = false;
            if (value.startsWith("-")) {
                negative = true;
                value = value.substring(1);
            }

            int decimals = value.indexOf(".");
            String decimalValue = null;
            if (0 <= decimals) {
                decimalValue = value.substring(decimals + 1);
                value = value.substring(0, decimals);
            }

            String name = processor.getName(value);

            if (name.isEmpty()) {
                name = ZERO_TOKEN;
            } else if (negative) {
                name = MINUS.concat(SEPARATOR).concat(name); 
            }

            if (!(null == decimalValue || decimalValue.isEmpty())) {
                name = name.concat(SEPARATOR).concat(UNION_AND).concat(SEPARATOR)
                    .concat(processor.getName(decimalValue))
                    .concat(SEPARATOR).concat(SCALE.getName(-decimalValue.length()));
            }

            return name;
        }

    }

    static public AbstractProcessor processor;


    public static void main(String...args) {

        processor = new DefaultProcessor();

        long[] values = new long[] {
            0,
            4,
            10,
            12,
            100,
            108,
            299,
            1000,
            1003,
            2040,
            45213,
            100000,
            100005,
            100010,
            202020,
            202022,
            999999,
            1000000,
            1000001,
            10000000,
            10000007,
            99999999,
            Long.MAX_VALUE,
            Long.MIN_VALUE
        };

        String[] strValues = new String[] {
            "0001.2",
            "3.141592"
        };

        for (long val : values) {
            System.out.println(val + " = " + processor.getName(val) );
        }

        for (String strVal : strValues) {
            System.out.println(strVal + " = " + processor.getName(strVal) );
        }

        // generate a very big number...
        StringBuilder bigNumber = new StringBuilder();
        for (int d=0; d<66; d++) {
            bigNumber.append( (char) ((Math.random() * 10) + '0'));
        }
        bigNumber.append(".");
        for (int d=0; d<26; d++) {
            bigNumber.append( (char) ((Math.random() * 10) + '0'));
        }

        System.out.println(bigNumber.toString() + " = " + processor.getName(bigNumber.toString()));

    }

}

e un output di esempio (per il generatore casuale di grandi numeri)

0 = zero
4 = four
10 = ten
12 = twelve
100 = one hundred
108 = one hundred eight
299 = two hundred ninety-nine
1000 = one thousand
1003 = one thousand three
2040 = two thousand fourty
45213 = fourty-five thousand two hundred thirteen
100000 = one hundred thousand
100005 = one hundred thousand five
100010 = one hundred thousand ten
202020 = two hundred two thousand twenty
202022 = two hundred two thousand twenty-two
999999 = nine hundred ninety-nine thousand nine hundred ninety-nine
1000000 = one million
1000001 = one million one
10000000 = ten million
10000007 = ten million seven
99999999 = ninety-nine million nine hundred ninety-nine thousand nine hundred ninety-nine
9223372036854775807 = nine quintillion two hundred twenty-three quadrillion three hundred seventy-two trillion thirty-six billion eight hundred fifty-four million seven hundred seventy-five thousand eight hundred seven
-9223372036854775808 = minus nine quintillion two hundred twenty-three quadrillion three hundred seventy-two trillion thirty-six billion eight hundred fifty-four million seven hundred seventy-five thousand eight hundred eight
0001.2 = one and two tenth
3.141592 = three and one hundred fourty-one thousand five hundred ninety-two millionth
694780458103427072928672912656674465845126458162617425283733729646.85695031739734695391404376 = six hundred ninety-four vigintillion seven hundred eighty novemdecillion four hundred fifty-eight octodecillion one hundred three septendecillion four hundred twenty-seven sexdecillion seventy-two quindecillion nine hundred twenty-eight quattuordecillion six hundred seventy-two tredecillion nine hundred twelve duodecillion six hundred fifty-six undecillion six hundred seventy-four decillion four hundred sixty-five nonillion eight hundred fourty-five octillion one hundred twenty-six septillion four hundred fifty-eight sextillion one hundred sixty-two quintillion six hundred seventeen quadrillion four hundred twenty-five trillion two hundred eighty-three billion seven hundred thirty-three million seven hundred twenty-nine thousand six hundred fourty-six and eighty-five septillion six hundred ninety-five sextillion thirty-one quintillion seven hundred thirty-nine quadrillion seven hundred thirty-four trillion six hundred ninety-five billion three hundred ninety-one million four hundred four thousand three hundred seventy-six hundred-septillionth

2
ho solo bisogno di questo solo per l'inglese
Jason,

2
@Jason, stavo rispondendo alla domanda "Esiste una funzione facile da usare in una delle librerie matematiche che posso usare per questo scopo?"
Yanick Rochon,

2
Inglese americano o inglese britannico? Miliardi hanno significati diversi tra queste culture.
Don Roby,

6
@Don Roby - AFAIK, questa è solo una preoccupazione storica. La maggior parte della gente britannica usa il significato inglese americano in questi giorni. (Certo, ci sono alcuni eccentrici in giro che scrivono lettere (in inchiostro verde) al The Times su questo genere di cose, ma probabilmente non se ne accorgeranno, a causa del rifiuto di imparare a usare i computer :-))
Stephen C

1
@Rochon: bel codice !! Mi ha aiutato molto..ma ha un piccolo bug..test con "10.00" ... per rimuovere questo bug voglio aggiungere una piccola correzione durante la conversione da stringa a parola, int indexOfDecimal = value.indexOf ("."); String decimal = value.substring (indexOfDecimal + 1, value.length ()); BigDecimal decimalValue = new BigDecimal (decimal); if (decimalValue.compareTo (BigDecimal.ZERO) == 0) value = value.substring (0, indexOfDecimal);
Abhishek Chatterjee,

60

ICU4J contiene un buon supporto per il numero di spellout. I file con le "regole" possono essere facilmente modificati, e non è un problema aggiungere altre lingue (lo abbiamo fatto per esempio per il polacco e il russo).


I dati di ICU4J provengono da CLDR unicode.org/cldr e supportano già il polacco e il russo. unicode.org/repos/cldr/trunk/common/rbnf Hai presentato un ticket se hai riscontrato problemi con le regole esistenti?
Steven R. Loomis,

No, ma l'abbiamo fatto alcuni anni fa, e se ricordo bene, avevamo bisogno di alcune cose aggiuntive. Ma buono a sapersi!
Landei,

RBNF ha subito importanti revisioni circa un anno fa, sia nel CLDR che in ICU. Controlla.
Steven R. Loomis,

5
Questa dovrebbe essere la risposta selezionata in quanto gli altri dipendono da implementazioni di esempi corretti e non localizzati
ooxi,

7
Sì! Questa dovrebbe essere una risposta selezionata ... Ha funzionato come un incantesimo ... Si traduce in qualsiasi lingua, qualsiasi regione, qualsiasi paese come elencato qui iana.org/assignments/language-subtag-registry/… .. L'utilizzo è come semplice come. RuleBasedNumberFormat ruleBasedNumberFormat = new RuleBasedNumberFormat( new Locale("EN", "US"), RuleBasedNumberFormat.SPELLOUT ); System.out.println(ruleBasedNumberFormat.format(value));
Muthu Ganapathy Nathan,

24

Penso che questa soluzione non sia la migliore, dal momento che funziona solo per int, ma penso che sia ottima per un principiante.

public class NumberWordConverter {
    public static final String[] units = {
            "", "one", "two", "three", "four", "five", "six", "seven",
            "eight", "nine", "ten", "eleven", "twelve", "thirteen", "fourteen",
            "fifteen", "sixteen", "seventeen", "eighteen", "nineteen"
    };

    public static final String[] tens = {
            "",        // 0
            "",        // 1
            "twenty",  // 2
            "thirty",  // 3
            "forty",   // 4
            "fifty",   // 5
            "sixty",   // 6
            "seventy", // 7
            "eighty",  // 8
            "ninety"   // 9
    };

    public static String convert(final int n) {
        if (n < 0) {
            return "minus " + convert(-n);
        }

        if (n < 20) {
            return units[n];
        }

        if (n < 100) {
            return tens[n / 10] + ((n % 10 != 0) ? " " : "") + units[n % 10];
        }

        if (n < 1000) {
            return units[n / 100] + " hundred" + ((n % 100 != 0) ? " " : "") + convert(n % 100);
        }

        if (n < 1000000) {
            return convert(n / 1000) + " thousand" + ((n % 1000 != 0) ? " " : "") + convert(n % 1000);
        }

        if (n < 1000000000) {
            return convert(n / 1000000) + " million" + ((n % 1000000 != 0) ? " " : "") + convert(n % 1000000);
        }

        return convert(n / 1000000000) + " billion"  + ((n % 1000000000 != 0) ? " " : "") + convert(n % 1000000000);
    }

    public static void main(final String[] args) {
        final Random generator = new Random();

        int n;
        for (int i = 0; i < 20; i++) {
            n = generator.nextInt(Integer.MAX_VALUE);

            System.out.printf("%10d = '%s'%n", n, convert(n));
        }

        n = 1000;
        System.out.printf("%10d = '%s'%n", n, convert(n));

        n = 2000;
        System.out.printf("%10d = '%s'%n", n, convert(n));

        n = 10000;
        System.out.printf("%10d = '%s'%n", n, convert(n));

        n = 11000;
        System.out.printf("%10d = '%s'%n", n, convert(n));

        n = 999999999;
        System.out.printf("%10d = '%s'%n", n, convert(n));

        n = Integer.MAX_VALUE;
        System.out.printf("%10d = '%s'%n", n, convert(n));
    }
}

Il test crea 20 numeri casuali fino a Integer.MAX_VALUEe di alcuni che sanno essere problematici, a causa di 0, 10, ecc. Output:

   5599908 = 'five million five hundred ninety nine thousand nine hundred eight'
 192603486 = 'one hundred ninety two million six hundred three thousand four hundred eighty six'
1392431868 = 'one billion three hundred ninety two million four hundred thirty one thousand eight hundred sixty eight'
1023787010 = 'one billion twenty three million seven hundred eighty seven thousand ten'
1364396236 = 'one billion three hundred sixty four million three hundred ninety six thousand two hundred thirty six'
1511255671 = 'one billion five hundred eleven million two hundred fifty five thousand six hundred seventy one'
 225955221 = 'two hundred twenty five million nine hundred fifty five thousand two hundred twenty one'
1890141052 = 'one billion eight hundred ninety million one hundred forty one thousand fifty two'
 261839422 = 'two hundred sixty one million eight hundred thirty nine thousand four hundred twenty two'
 728428650 = 'seven hundred twenty eight million four hundred twenty eight thousand six hundred fifty'
 860607319 = 'eight hundred sixty million six hundred seven thousand three hundred nineteen'
 719753587 = 'seven hundred nineteen million seven hundred fifty three thousand five hundred eighty seven'
2063829124 = 'two billion sixty three million eight hundred twenty nine thousand one hundred twenty four'
1081010996 = 'one billion eighty one million ten thousand nine hundred ninety six'
 999215799 = 'nine hundred ninety nine million two hundred fifteen thousand seven hundred ninety nine'
2105226236 = 'two billion one hundred five million two hundred twenty six thousand two hundred thirty six'
1431882940 = 'one billion four hundred thirty one million eight hundred eighty two thousand nine hundred forty'
1991707241 = 'one billion nine hundred ninety one million seven hundred seven thousand two hundred forty one'
1088301563 = 'one billion eighty eight million three hundred one thousand five hundred sixty three'
 964601609 = 'nine hundred sixty four million six hundred one thousand six hundred nine'
      1000 = 'one thousand'
      2000 = 'two thousand'
     10000 = 'ten thousand'
     11000 = 'eleven thousand'
 999999999 = 'nine hundred ninety nine million nine hundred ninety nine thousand nine hundred ninety nine'
2147483647 = 'two billion one hundred forty seven million four hundred eighty three thousand six hundred forty seven'

Spero che sia d'aiuto :)


9
/**

This Program will display the given number in words from 0 to 999999999

@author Manoj Kumar Dunna

Mail Id : manojdunna@gmail.com

**/  


import java.util.Scanner;

class NumberToString
{

    public enum hundreds {OneHundred, TwoHundred, ThreeHundred, FourHundred, FiveHundred, SixHundred, SevenHundred, EightHundred, NineHundred}
    public enum tens {Twenty, Thirty, Forty, Fifty, Sixty, Seventy, Eighty, Ninety}
    public enum ones {One, Two, Three, Four, Five, Six, Seven, Eight, Nine}
    public enum denom {Thousand, Lakhs, Crores}
    public enum splNums { Ten, Eleven, Twelve, Thirteen, Fourteen, Fifteen, Sixteen, Seventeen, Eighteen, Nineteen}
    public static String text = "";

    public static void main(String[] args) 
    {
        System.out.println("Enter Number to convert into words");
        Scanner sc = new Scanner(System.in);
        long num = sc.nextInt();
        int rem = 0;
        int i = 0;
        while(num > 0)
        {
            if(i == 0){
                rem = (int) (num % 1000);
                printText(rem);
                num = num / 1000;
                i++;
            }
            else if(num > 0)
            {
                rem = (int) (num % 100);
                if(rem > 0)
                    text = denom.values()[i - 1]+ " " + text;
                printText(rem);
                num = num / 100;
                i++;
            }
        }
        if(i > 0)
            System.out.println(text);
        else
            System.out.println("Zero");
    }

    public static void printText(int num)
    {
        if(!(num > 9 && num < 19))
        {
            if(num % 10 > 0)
                getOnes(num % 10);

            num = num / 10;
            if(num % 10 > 0)
                getTens(num % 10);

            num = num / 10;
            if(num > 0)
                getHundreds(num);
        }
        else
        {
            getSplNums(num % 10);
        }
    }

    public static void getSplNums(int num)
    {
        text = splNums.values()[num]+ " " + text;
    }

    public static void getHundreds(int num)
    {
        text = hundreds.values()[num - 1]+ " " + text;
    }

    public static void getTens(int num)
    {
        text = tens.values()[num - 2]+ " " + text;
    }

    public static void getOnes(int num)
    {
        text = ones.values()[num - 1]+ " " + text;
    }
}

2
Lakh and Crore è usato l'inglese indiano ma non in Europa e non in America. Vedi Wikipedia .
CoperNick,

6
package it.tommasoresti.facebook;

class NumbersToWords {

    private static final String ZERO = "zero";
    private static String[] oneToNine = {
            "one", "two", "three", "four", "five", "six", "seven", "height", "nine"
    };

    private static String[] tenToNinteen = {
            "ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen"
    };

    private static String[] dozens = {
            "ten", "twenty", "thirty", "forty", "fifty", "sixty", "seventy", "eighty", "ninety"
    };

    public static String solution(int number) {
        if(number == 0)
            return ZERO;

        return generate(number).trim();
    }

    public static String generate(int number) {
        if(number >= 1000000000) {
            return generate(number / 1000000000) + " billion " + generate(number % 1000000000);
        }
        else if(number >= 1000000) {
            return generate(number / 1000000) + " million " + generate(number % 1000000);
        }
        else if(number >= 1000) {
            return generate(number / 1000) + " thousand " + generate(number % 1000);
        }
        else if(number >= 100) {
            return generate(number / 100) + " hundred " + generate(number % 100);
        }

        return generate1To99(number);
    }

    private static String generate1To99(int number) {
        if (number == 0)
            return "";

        if (number <= 9)
            return oneToNine[number - 1];
        else if (number <= 19)
            return tenToNinteen[number % 10];
        else {
            return dozens[number / 10 - 1] + " " + generate1To99(number % 10);
        }
    }
}

Test

@Test
public void given_a_complex_number() throws Exception {
    assertThat(solution(1234567890),
        is("one billion two hundred thirty four million five hundred sixty seven thousand height hundred ninety"));
}

1
soluzione geniale.
Mohamed Nageh,

5

Dai un'occhiata a Tradukisto . È una libreria Java che ho scritto che fa il lavoro.


2
C'è un motivo per cui tutte queste risposte hanno una cattiva grammatica? "1234" deve essere "mille duecento e una trentina di-quattro". È un inglese bancario che non conosco?
Weston,

3
@weston In inglese americano "e" non vengono utilizzati. Questo è solo in inglese britannico.
4castle,

1
@ 4castle heh, moglie americana, vivo in Canada e non l'ho mai notato!
Weston,

4

In questo post ho appena aggiornato il codice di Yanick Rochon . L'ho reso fattibile con la versione precedente di Java 1.6 e stavo ottenendo l'output per 1.00 = un centesimo . Quindi ho aggiornato il codice. Nuovo ottengo l'output per 1.00 = uno e zero centesimi .

Non faccio cosa dovrei fare. Aggiungi una nuova risposta o modifica quel post. Poiché la risposta è altamente classificata, ho fatto un nuovo post con l'aggiornamento del codice. Ho appena cambiato queste due cose che ho menzionato sopra.

/**
 * This class will convert numeric values into an english representation
 * 
 * For units, see : http://www.jimloy.com/math/billion.htm
 * 
 * @author yanick.rochon@gmail.com
 */
public class NumberToWords {

    static public class ScaleUnit {
        private int exponent;
        private String[] names;

        private ScaleUnit(int exponent, String... names) {
            this.exponent = exponent;
            this.names = names;
        }

        public int getExponent() {
            return exponent;
        }

        public String getName(int index) {
            return names[index];
        }
    }

    /**
     * See http://www.wordiq.com/definition/Names_of_large_numbers
     */
    static private ScaleUnit[] SCALE_UNITS = new ScaleUnit[] {
            new ScaleUnit(63, "vigintillion", "decilliard"),
            new ScaleUnit(60, "novemdecillion", "decillion"),
            new ScaleUnit(57, "octodecillion", "nonilliard"),
            new ScaleUnit(54, "septendecillion", "nonillion"),
            new ScaleUnit(51, "sexdecillion", "octilliard"),
            new ScaleUnit(48, "quindecillion", "octillion"),
            new ScaleUnit(45, "quattuordecillion", "septilliard"),
            new ScaleUnit(42, "tredecillion", "septillion"),
            new ScaleUnit(39, "duodecillion", "sextilliard"),
            new ScaleUnit(36, "undecillion", "sextillion"),
            new ScaleUnit(33, "decillion", "quintilliard"),
            new ScaleUnit(30, "nonillion", "quintillion"),
            new ScaleUnit(27, "octillion", "quadrilliard"),
            new ScaleUnit(24, "septillion", "quadrillion"),
            new ScaleUnit(21, "sextillion", "trilliard"),
            new ScaleUnit(18, "quintillion", "trillion"),
            new ScaleUnit(15, "quadrillion", "billiard"),
            new ScaleUnit(12, "trillion", "billion"),
            new ScaleUnit(9, "billion", "milliard"),
            new ScaleUnit(6, "million", "million"),
            new ScaleUnit(3, "thousand", "thousand"),
            new ScaleUnit(2, "hundred", "hundred"),
            // new ScaleUnit(1, "ten", "ten"),
            // new ScaleUnit(0, "one", "one"),
            new ScaleUnit(-1, "tenth", "tenth"), new ScaleUnit(-2, "hundredth", "hundredth"),
            new ScaleUnit(-3, "thousandth", "thousandth"),
            new ScaleUnit(-4, "ten-thousandth", "ten-thousandth"),
            new ScaleUnit(-5, "hundred-thousandth", "hundred-thousandth"),
            new ScaleUnit(-6, "millionth", "millionth"),
            new ScaleUnit(-7, "ten-millionth", "ten-millionth"),
            new ScaleUnit(-8, "hundred-millionth", "hundred-millionth"),
            new ScaleUnit(-9, "billionth", "milliardth"),
            new ScaleUnit(-10, "ten-billionth", "ten-milliardth"),
            new ScaleUnit(-11, "hundred-billionth", "hundred-milliardth"),
            new ScaleUnit(-12, "trillionth", "billionth"),
            new ScaleUnit(-13, "ten-trillionth", "ten-billionth"),
            new ScaleUnit(-14, "hundred-trillionth", "hundred-billionth"),
            new ScaleUnit(-15, "quadrillionth", "billiardth"),
            new ScaleUnit(-16, "ten-quadrillionth", "ten-billiardth"),
            new ScaleUnit(-17, "hundred-quadrillionth", "hundred-billiardth"),
            new ScaleUnit(-18, "quintillionth", "trillionth"),
            new ScaleUnit(-19, "ten-quintillionth", "ten-trillionth"),
            new ScaleUnit(-20, "hundred-quintillionth", "hundred-trillionth"),
            new ScaleUnit(-21, "sextillionth", "trilliardth"),
            new ScaleUnit(-22, "ten-sextillionth", "ten-trilliardth"),
            new ScaleUnit(-23, "hundred-sextillionth", "hundred-trilliardth"),
            new ScaleUnit(-24, "septillionth", "quadrillionth"),
            new ScaleUnit(-25, "ten-septillionth", "ten-quadrillionth"),
            new ScaleUnit(-26, "hundred-septillionth", "hundred-quadrillionth"), };

    static public enum Scale {
        SHORT, LONG;

        public String getName(int exponent) {
            for (ScaleUnit unit : SCALE_UNITS) {
                if (unit.getExponent() == exponent) {
                    return unit.getName(this.ordinal());
                }
            }
            return "";
        }
    }

    /**
     * Change this scale to support American and modern British value (short scale) or Traditional
     * British value (long scale)
     */
    static public Scale SCALE = Scale.SHORT;

    static abstract public class AbstractProcessor {

        static protected final String SEPARATOR = " ";
        static protected final int NO_VALUE = -1;

        protected List<Integer> getDigits(long value) {
            ArrayList<Integer> digits = new ArrayList<Integer>();
            if (value == 0) {
                digits.add(0);
            } else {
                while (value > 0) {
                    digits.add(0, (int) value % 10);
                    value /= 10;
                }
            }
            return digits;
        }

        public String getName(long value) {
            return getName(Long.toString(value));
        }

        public String getName(double value) {
            return getName(Double.toString(value));
        }

        abstract public String getName(String value);
    }

    static public class UnitProcessor extends AbstractProcessor {

        static private final String[] TOKENS = new String[] { "one", "two", "three", "four",
                "five", "six", "seven", "eight", "nine", "ten", "eleven", "twelve", "thirteen",
                "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen" };

        @Override
        public String getName(String value) {
            StringBuilder buffer = new StringBuilder();

            int offset = NO_VALUE;
            int number;
            if (value.length() > 3) {
                number = Integer.valueOf(value.substring(value.length() - 3), 10);
            } else {
                number = Integer.valueOf(value, 10);
            }
            number %= 100;
            if (number < 10) {
                offset = (number % 10) - 1;
                // number /= 10;
            } else if (number < 20) {
                offset = (number % 20) - 1;
                // number /= 100;
            }

            if (offset != NO_VALUE && offset < TOKENS.length) {
                buffer.append(TOKENS[offset]);
            }

            return buffer.toString();
        }

    }

    static public class TensProcessor extends AbstractProcessor {

        static private final String[] TOKENS = new String[] { "twenty", "thirty", "fourty",
                "fifty", "sixty", "seventy", "eighty", "ninety" };

        static private final String UNION_SEPARATOR = "-";

        private UnitProcessor unitProcessor = new UnitProcessor();

        @Override
        public String getName(String value) {
            StringBuilder buffer = new StringBuilder();
            boolean tensFound = false;

            int number;
            if (value.length() > 3) {
                number = Integer.valueOf(value.substring(value.length() - 3), 10);
            } else {
                number = Integer.valueOf(value, 10);
            }
            number %= 100; // keep only two digits
            if (number >= 20) {
                buffer.append(TOKENS[(number / 10) - 2]);
                number %= 10;
                tensFound = true;
            } else {
                number %= 20;
            }

            if (number != 0) {
                if (tensFound) {
                    buffer.append(UNION_SEPARATOR);
                }
                buffer.append(unitProcessor.getName(number));
            }

            return buffer.toString();
        }
    }

    static public class HundredProcessor extends AbstractProcessor {

        private int EXPONENT = 2;

        private UnitProcessor unitProcessor = new UnitProcessor();
        private TensProcessor tensProcessor = new TensProcessor();

        @Override
        public String getName(String value) {
            StringBuilder buffer = new StringBuilder();

            int number;
            if ("".equals(value)) {
                number = 0;
            } else if (value.length() > 4) {
                number = Integer.valueOf(value.substring(value.length() - 4), 10);
            } else {
                number = Integer.valueOf(value, 10);
            }
            number %= 1000; // keep at least three digits

            if (number >= 100) {
                buffer.append(unitProcessor.getName(number / 100));
                buffer.append(SEPARATOR);
                buffer.append(SCALE.getName(EXPONENT));
            }

            String tensName = tensProcessor.getName(number % 100);

            if (!"".equals(tensName) && (number >= 100)) {
                buffer.append(SEPARATOR);
            }
            buffer.append(tensName);

            return buffer.toString();
        }
    }

    static public class CompositeBigProcessor extends AbstractProcessor {

        private HundredProcessor hundredProcessor = new HundredProcessor();
        private AbstractProcessor lowProcessor;
        private int exponent;

        public CompositeBigProcessor(int exponent) {
            if (exponent <= 3) {
                lowProcessor = hundredProcessor;
            } else {
                lowProcessor = new CompositeBigProcessor(exponent - 3);
            }
            this.exponent = exponent;
        }

        public String getToken() {
            return SCALE.getName(getPartDivider());
        }

        protected AbstractProcessor getHighProcessor() {
            return hundredProcessor;
        }

        protected AbstractProcessor getLowProcessor() {
            return lowProcessor;
        }

        public int getPartDivider() {
            return exponent;
        }

        @Override
        public String getName(String value) {
            StringBuilder buffer = new StringBuilder();

            String high, low;
            if (value.length() < getPartDivider()) {
                high = "";
                low = value;
            } else {
                int index = value.length() - getPartDivider();
                high = value.substring(0, index);
                low = value.substring(index);
            }

            String highName = getHighProcessor().getName(high);
            String lowName = getLowProcessor().getName(low);

            if (!"".equals(highName)) {
                buffer.append(highName);
                buffer.append(SEPARATOR);
                buffer.append(getToken());

                if (!"".equals(lowName)) {
                    buffer.append(SEPARATOR);
                }
            }

            if (!"".equals(lowName)) {
                buffer.append(lowName);
            }

            return buffer.toString();
        }
    }

    static public class DefaultProcessor extends AbstractProcessor {

        static private String MINUS = "minus";
        static private String UNION_AND = "and";

        static private String ZERO_TOKEN = "zero";

        private AbstractProcessor processor = new CompositeBigProcessor(63);

        @Override
        public String getName(String value) {
            boolean negative = false;
            if (value.startsWith("-")) {
                negative = true;
                value = value.substring(1);
            }

            int decimals = value.indexOf(".");
            String decimalValue = null;
            if (0 <= decimals) {
                decimalValue = value.substring(decimals + 1);
                value = value.substring(0, decimals);
            }

            String name = processor.getName(value);

            if ("".equals(name)) {
                name = ZERO_TOKEN;
            } else if (negative) {
                name = MINUS.concat(SEPARATOR).concat(name);
            }

            if (!(null == decimalValue || "".equals(decimalValue))) {

                String zeroDecimalValue = "";
                for (int i = 0; i < decimalValue.length(); i++) {
                    zeroDecimalValue = zeroDecimalValue + "0";
                }
                if (decimalValue.equals(zeroDecimalValue)) {
                    name = name.concat(SEPARATOR).concat(UNION_AND).concat(SEPARATOR).concat(
                            "zero").concat(SEPARATOR).concat(
                            SCALE.getName(-decimalValue.length()));
                } else {
                    name = name.concat(SEPARATOR).concat(UNION_AND).concat(SEPARATOR).concat(
                            processor.getName(decimalValue)).concat(SEPARATOR).concat(
                            SCALE.getName(-decimalValue.length()));
                }

            }

            return name;
        }

    }

    static public AbstractProcessor processor;

    public static void main(String... args) {

        processor = new DefaultProcessor();

        long[] values = new long[] { 0, 4, 10, 12, 100, 108, 299, 1000, 1003, 2040, 45213, 100000,
                100005, 100010, 202020, 202022, 999999, 1000000, 1000001, 10000000, 10000007,
                99999999, Long.MAX_VALUE, Long.MIN_VALUE };

        String[] strValues = new String[] { "0", "1.30", "0001.00", "3.141592" };

        for (long val : values) {
            System.out.println(val + " = " + processor.getName(val));
        }

        for (String strVal : strValues) {
            System.out.println(strVal + " = " + processor.getName(strVal));
        }

        // generate a very big number...
        StringBuilder bigNumber = new StringBuilder();
        for (int d = 0; d < 66; d++) {
            bigNumber.append((char) ((Math.random() * 10) + '0'));
        }
        bigNumber.append(".");
        for (int d = 0; d < 26; d++) {
            bigNumber.append((char) ((Math.random() * 10) + '0'));
        }
        System.out.println(bigNumber.toString() + " = " + processor.getName(bigNumber.toString()));
    }
}

L'output è

0 = zero
4 = four
10 = ten
12 = twelve
100 = one hundred
108 = one hundred eight
299 = two hundred ninety-nine
1000 = one thousand
1003 = one thousand three
2040 = two thousand fourty
45213 = fourty-five thousand two hundred thirteen
100000 = one hundred thousand
100005 = one hundred thousand five
100010 = one hundred thousand ten
202020 = two hundred two thousand twenty
202022 = two hundred two thousand twenty-two
999999 = nine hundred ninety-nine thousand nine hundred ninety-nine
1000000 = one million
1000001 = one million one
10000000 = ten million
10000007 = ten million seven
99999999 = ninety-nine million nine hundred ninety-nine thousand nine hundred ninety-nine
9223372036854775807 = nine quintillion two hundred twenty-three quadrillion three hundred seventy-two trillion thirty-six billion eight hundred fifty-four million seven hundred seventy-five thousand eight hundred seven
-9223372036854775808 = minus nine quintillion two hundred twenty-three quadrillion three hundred seventy-two trillion thirty-six billion eight hundred fifty-four million seven hundred seventy-five thousand eight hundred eight
0.0 = zero and zero tenth
1.30 = one and thirty hundredth
0001.00 = one and zero hundredth
3.141592 = three and one hundred fourty-one thousand five hundred ninety-two millionth
354064188376576616844741830273568537829518115677552666352927559274.76892492652888527014418647 = three hundred fifty-four vigintillion sixty-four novemdecillion one hundred eighty-eight octodecillion three hundred seventy-six septendecillion five hundred seventy-six sexdecillion six hundred sixteen quindecillion eight hundred fourty-four quattuordecillion seven hundred fourty-one tredecillion eight hundred thirty duodecillion two hundred seventy-three undecillion five hundred sixty-eight decillion five hundred thirty-seven nonillion eight hundred twenty-nine octillion five hundred eighteen septillion one hundred fifteen sextillion six hundred seventy-seven quintillion five hundred fifty-two quadrillion six hundred sixty-six trillion three hundred fifty-two billion nine hundred twenty-seven million five hundred fifty-nine thousand two hundred seventy-four and seventy-six septillion eight hundred ninety-two sextillion four hundred ninety-two quintillion six hundred fifty-two quadrillion eight hundred eighty-eight trillion five hundred twenty-seven billion fourteen million four hundred eighteen thousand six hundred fourty-seven hundred-septillionth

3
/* this program will display number in words
for eg. if you enter 101,it will show "ONE HUNDRED AND ONE"*/

import java.util.*;

public class NumToWords {
  String string;
  String st1[] = { "", "one", "two", "three", "four", "five", "six", "seven",
                   "eight", "nine", };
  String st2[] = { "hundred", "thousand", "lakh", "crore" };
  String st3[] = { "ten", "eleven", "twelve", "thirteen", "fourteen",
                   "fifteen", "sixteen", "seventeen", "eighteen", "ninteen", };
  String st4[] = { "twenty", "thirty", "fourty", "fifty", "sixty", "seventy",
                   "eighty", "ninety" };

  public String convert(int number) {
    int n = 1;
    int word;
    string = "";
    while (number != 0) {
      switch (n) {
        case 1:
          word = number % 100;
          pass(word);
          if (number > 100 && number % 100 != 0) {
            show("and ");
            //System.out.print("ankit");
          }
          number /= 100;
          break;
        case 2:
          word = number % 10;
          if (word != 0) {
            show(" ");
            show(st2[0]);
            show(" ");
            pass(word);
          }
          number /= 10;
          break;
        case 3:
          word = number % 100;
          if (word != 0) {
            show(" ");
            show(st2[1]);
            show(" ");
            pass(word);
          }
          number /= 100;
          break;
        case 4:
          word = number % 100;
          if (word != 0) {
            show(" ");
            show(st2[2]);
            show(" ");
            pass(word);
          }
          number /= 100;
          break;
        case 5:
          word = number % 100;
          if (word != 0) {
            show(" ");
            show(st2[3]);
            show(" ");
            pass(word);
          }
          number /= 100;
          break;
        }
        n++;
      }
      return string;
    }

  public void pass(int number) {
    int word, q;
    if (number < 10) {
      show(st1[number]);
    }
    if (number > 9 && number < 20) {
      show(st3[number - 10]);
    }
    if (number > 19) {
      word = number % 10;
      if (word == 0) {
        q = number / 10;
        show(st4[q - 2]);
      } else {
        q = number / 10;
        show(st1[word]);
        show(" ");
        show(st4[q - 2]);
      }
    }
  }

  public void show(String s) {
    String st;
    st = string;
    string = s;
    string += st;
  }

  public static void main(String[] args) {
    NumToWords w = new NumToWords();
    Scanner input = new Scanner(System.in);
    System.out.print("Enter Number: ");
    int num = input.nextInt();
    String inwords = w.convert(num);
    System.out.println(inwords);
  }
}

Devi aggiungere una descrizione insieme al codice ... Benvenuto in Stackoverflow
Sandip Armal Patil,

2

È possibile utilizzare RuleBasedNumberFormat. per esempio il risultato ti daràNinety

ULocale locale = new ULocale(Locale.US);  //us english
Double d = Double.parseDouble(90);
NumberFormat formatter = new RuleBasedNumberFormat(locale, RuleBasedNumberFormat.SPELLOUT);
String result = formatter.format(d);

Supporta una vasta gamma di lingue.


1
Per chi parla spagnolo suggerisco di leggere anche questa risposta: stackoverflow.com/a/10019105/3954514
Sebastian Cardona Osorio

1

Penso che questo possa aiutarti ... il programma è molto semplice e funziona bene

import java.util.*;

public class NumberToWord

{
    public void pw(int n, String ch)
    {
        String one[] = {

        " ", " one", " two", " three", " four", " five", " six", " seven",
                " eight", " Nine", " ten", " eleven", " twelve", " thirteen",
                " fourteen", "fifteen", " sixteen", " seventeen", " eighteen",
                " nineteen" };
        String ten[] = { " ", " ", " twenty", " thirty", " forty", " fifty",
                " sixty", "seventy", " eighty", " ninety" };
        if (n > 19) {
            System.out.print(ten[n / 10] + " " + one[n % 10]);
        } else {
            System.out.print(one[n]);
        }
        if (n > 0)
            System.out.print(ch);

    }
    public static void main(String[] args)

    {
        int n = 0;
        Scanner s = new Scanner(System.in);
        System.out.print("Enter an integer number: ");
        n = s.nextInt();
        if (n <= 0)
            System.out.print("Enter numbers greater than 0");
        else
        {
            NumberToWord a = new NumberToWord();
            System.out.print("After conversion number in words is :");
            a.pw((n / 1000000000), " Hundred");
            a.pw((n / 10000000) % 100, " crore");
            a.pw(((n / 100000) % 100), " lakh");
            a.pw(((n / 1000) % 100), " thousand");
            a.pw(((n / 100) % 10), " hundred");
            a.pw((n % 100), " ");
        }
    }
}

1
import java.util.*;

public class NumberToWord {
    public void numberToword(int n, String ch) {
        String one[] = {" ", " one", " two", " three", " four", " five", " six", " seven", " eight", " Nine", " ten", " eleven", " twelve", " thirteen", " fourteen", "fifteen", " sixteen", " seventeen", " eighteen", " nineteen"
        };
        String ten[] = {" ", " ", " twenty", " thirty", " forty", " fifty", " sixty", "seventy", " eighty", " ninety"};
        if (n > 19) {
            System.out.print(ten[n / 10] + " " + one[n % 10]);
        } else {
            System.out.print(one[n]);
        }
        if (n > 0) {
            System.out.print(ch);
        }
    }
    public static void main(String[] args) {
        int n = 0;
        Scanner s = new Scanner(System.in);
        System.out.print("Enter an integer number: ");
        n = s.nextInt();
        if (n <= 0) {
            System.out.print("Enter numbers greater than 0");
        } else {
            NumberToWord a = new NumberToWord();
            System.out.print("After conversion number in words is :");
            a.numberToword((n / 1000000000), " Hundred");
            a.numberToword((n / 10000000) % 100, " crore");
            a.numberToword(((n / 100000) % 100), " lakh");
            a.numberToword(((n / 1000) % 100), " thousand");
            a.numberToword(((n / 100) % 10), " hundred");
            a.numberToword((n % 100), " ");
        }
    }
}

1

questo potrebbe aiutare

public String numberToWords(long number) {
    if (number == 0) {
        return "zero";
    }
    if (number < 0) {
        return "minus " + numberToWords(Math.abs(number));
    }
    String words = "";
    if ((number / 10000000) > 0) {
        words += numberToWords(number / 10000000) + " Crore ";
        number %= 10000000;
    }
    if ((number / 100000) > 0) {
        words += numberToWords(number / 100000) + " Lakh ";
        number %= 100000;
    }
    if ((number / 1000) > 0) {
        words += numberToWords(number / 1000) + " Thousand ";
        number %= 1000;
    }
    if ((number / 100) > 0) {
        words += numberToWords(number / 100) + " Hundred ";
        number %= 100;
    }
    if (number > 0) {
        if (!words.equals("")) {
            words += "and ";
        }
        if (number < 20) {
            words += number;
        } else {
            words += (number);
            if ((number % 10) > 0) {
                words += "-" + (number % 10);
            }
        }
    }
    return words;
}

1

Probabilmente non ti servirà più, ma di recente ho scritto una classe Java per farlo. Apparentemente Yanick Rochon ha fatto qualcosa di simile. Converte i numeri fino a 999 novemdecilioni (999 * 10 ^ 60). Potrebbe fare di più se sapessi cosa è successo dopo Novemberdecillion, ma sarei disposto a scommettere che non è necessario. Basta inserire il numero come una stringa in centesimi. L'output è anche grammaticalmente corretto.

Ecco un link al Bitbucket Repo


2
Cordiali saluti, questo collegamento sembra essere rotto
Giustino il

1
class NumberToWord {
    private static Map<Integer, String> numbers = new HashMap<Integer, String>();
    private static Set<Integer> numberSet = new TreeSet<Integer>(new Comparator<Integer>() {
        public int compare(Integer o1, Integer o2) {
            return o2 - o1;
        }
    });

    static {
        init();
        numberSet.addAll(numbers.keySet());
    }

    public static void main(String[] args) {
        System.out.println(getNumberInWord(1898765));
    }

    /*
     * convert positive numbers in word format number > 0 only
     */
    static String getNumberInWord(int number) {
        StringBuilder word = new StringBuilder();
        for (Integer n : numberSet) {
            if (number > 0 && number >= n) {
                int div = number / n;
                String strNum = numbers.get(div);
                if (strNum == null) {
                    word.append(getNumberInWord(div));
                }
                // for less than 100, we don't need to say 1
                if (strNum != null && (div > 1 || n > 100))
                    word.append(strNum + " ");

                word.append(numbers.get(n) + " ");
                number = number % n;
            }
        }
        return word.toString();
    }

    static void init() {
        numbers.put(0, "Zero");
        numbers.put(1, "One");
        numbers.put(2, "Two");
        numbers.put(3, "Three");
        numbers.put(4, "Four");
        numbers.put(5, "Five");
        numbers.put(6, "Six");
        numbers.put(7, "Seven");
        numbers.put(8, "Eight");
        numbers.put(9, "Nine");
        numbers.put(10, "Ten");
        numbers.put(11, "Eleven");
        numbers.put(12, "Twelve");
        numbers.put(13, "Thirteen");
        numbers.put(14, "Fourteen");
        numbers.put(15, "Fifteen");
        numbers.put(16, "Sixteen");
        numbers.put(17, "Seventeen");
        numbers.put(18, "Eighteeen");
        numbers.put(19, "Nineteen");
        numbers.put(20, "Twenty");
        numbers.put(30, "Thirty");
        numbers.put(40, "Forty");
        numbers.put(50, "Fifty");
        numbers.put(60, "Sixty");
        numbers.put(70, "Seventy");
        numbers.put(80, "Eighty");
        numbers.put(90, "Ninty");
        numbers.put(100, "Hundred");
        numbers.put(1000, "Thousand");
        numbers.put(1000000, "Million");
        numbers.put(100000000, "Billion");
    }

}

1

Ho sviluppato un componente Java per convertire un determinato numero in parole. Tutto quello che devi fare è: basta copiare l'intera classe dal programma Java per convertire i numeri in parole e incollarlo nel tuo progetto.

Invocalo come di seguito

Words w = Words.getInstance(1234567);
System.out.println(w.getNumberInWords());

Il mio programma supporta fino a 10 milioni. Se vuoi, puoi ancora estenderlo. Appena sotto l'output di esempio

2345223 = Twenty Three Lakh Fourty Five Thousand Two Hundred Twenty Three
9999999 = Ninety Nine Lakh Ninety Nine Thousand Nine Hundred Ninety Nine
199 = One Hundred Ninety Nine
10 = Ten

Grazie

Santhosh


1

Puoi usare ICU4J , devi solo aggiungere la voce POM e il codice è sotto per qualsiasi numero, paese e lingua.

Voce POM

     <dependency>
        <groupId>com.ibm.icu</groupId>
        <artifactId>icu4j</artifactId>
        <version>64.2</version>
    </dependency>

Il codice è

public class TranslateNumberToWord {

/**
 * Translate
 * 
 * @param ctryCd
 * @param lang
 * @param reqStr
 * @param fractionUnitName
 * @return
 */
public static String translate(String ctryCd, String lang, String reqStr, String fractionUnitName) {
    StringBuffer result = new StringBuffer();

    Locale locale = new Locale(lang, ctryCd);
    Currency crncy = Currency.getInstance(locale);

    String inputArr[] = StringUtils.split(new BigDecimal(reqStr).abs().toPlainString(), ".");
    RuleBasedNumberFormat rule = new RuleBasedNumberFormat(locale, RuleBasedNumberFormat.SPELLOUT);

    int i = 0;
    for (String input : inputArr) {
        CurrencyAmount crncyAmt = new CurrencyAmount(new BigDecimal(input), crncy);
        if (i++ == 0) {
            result.append(rule.format(crncyAmt)).append(" " + crncy.getDisplayName() + " and ");
        } else {
            result.append(rule.format(crncyAmt)).append(" " + fractionUnitName + " ");
        }
    }
    return result.toString();
}

public static void main(String[] args) {
    String ctryCd = "US";
    String lang = "en";
    String input = "95.17";

    String result = translate(ctryCd, lang, input, "Cents");
    System.out.println("Input: " + input + " result: " + result);
}}

Testato con un numero abbastanza grande e l'uscita sarebbe

Input: 95.17 result: ninety-five US Dollar and seventeen Cents
Input: 999999999999999999.99 result: nine hundred ninety-nine quadrillion nine hundred ninety-nine trillion nine hundred ninety-nine billion nine hundred ninety-nine million nine hundred ninety-nine thousand nine hundred ninety-nine US Dollar and ninety-nine Cents 

Ho sviluppato un'API REST per soddisfare il Numero in Parole per qualsiasi lingua. Gratis da usare, provalo 49.206.25.208:18080/api/v1/generate/…
Anand

0
/* This program will print words for a number between 0 to 99999*/

    public class NumberInWords5Digits {

        static int testcase1 = 93284;

        public static void main(String args[]){
            NumberInWords5Digits testInstance = new NumberInWords5Digits();
            String result = testInstance.inWords(testcase1);
            System.out.println("Result : "+result);
        }

        //write your code here
        public String inWords(int num){
            int digit = 0;
            String word = "";
            int temp = num;
            while(temp>0)
            {
                if(temp%10 >= 0)
                    digit++;
                temp = temp/10;
            }

            if(num == 0)
                return "zero";

            System.out.println(num);
            if(digit == 1)
                word = inTens(num, digit);
            else if(digit == 2)
                word = inTens(num, digit);
            else if(digit == 3)
                word = inHundreds(num, digit);
            else if(digit == 4)
                word = inThousands(num, digit);
            else if(digit == 5)
                word = inThousands(num, digit);
            return word;
        }

        public String inTens(int num, int digit){
            int tens = 0;
            int units = 0;
            if(digit == 2)      
            {
                tens = num/10;
                units = num%10;
            }
            String unit = "";
            String ten = "";
            String word = "";

            if(num == 10)
            {word = "ten"; return word;}

            if(num == 11)
            {word = "eleven"; return word;}
            if(num == 12)
            {word = "twelve"; return word;}
            if(num == 13)
            {word = "thirteen"; return word;}
            if(num == 14)
            {word = "fourteen"; return word;}
            if(num == 15)
            {word = "fifteen"; return word;}
            if(num == 16)
            {word = "sixteen"; return word;}
            if(num == 17)
            {word = "seventeen"; return word;}
            if(num == 18)
            {word = "eighteen"; return word;}
            if(num == 19)
            {word = "nineteen"; return word;}

            if(units == 1 || num == 1)
                unit = "one";
            else if(units == 2 || num == 2)
                unit = "two";
            else if(units == 3 || num == 3)
                unit = "three";
            else if(units == 4 || num == 4)
                unit = "four";
            else if(units == 5 || num == 5)
                unit = "five";
            else if(units == 6 || num == 6)
                unit = "six";
            else if(units == 7 || num == 7)
                unit = "seven";
            else if(units == 8 || num == 8)
                unit = "eight";
            else if(units == 9 || num == 9)
                unit = "nine";

            if(tens == 2)
                ten = "twenty";
            else if(tens == 3)
                ten = "thirty";
            else if(tens == 4)
                ten = "forty";
            else if(tens == 5)
                ten = "fifty";
            else if(tens == 6)
                ten = "sixty";
            else if(tens == 7)
                ten = "seventy";
            else if(tens == 8)
                ten = "eighty";
            else if(tens == 9)
                ten = "ninety";

            if(digit == 1)
                word = unit;
            else if(digit == 2)
                word = ten + " " + unit;
            return word;
        }

        //inHundreds(525, 3)
        public String inHundreds(int num, int digit){

            int hundreds = num/100; // =5
            int tensAndUnits = num%100; // =25
            String hundred = "";
            String tenAndUnit = "";
            String word = "";

            tenAndUnit = inTens(tensAndUnits, 2);

            if(hundreds == 1)
                hundred = "one hundred";
            else if(hundreds == 2)
                hundred = "two hundred";
            else if(hundreds == 3)
                hundred = "three hundred";
            else if(hundreds == 4)
                hundred = "four hundred";
            else if(hundreds == 5)
                hundred = "five hundred";
            else if(hundreds == 6)
                hundred = "six hundred";
            else if(hundreds == 7)
                hundred = "seven hundred";
            else if(hundreds == 8)
                hundred = "eight hundred";
            else if(hundreds == 9)
                hundred = "nine hundred";

            word = hundred + " " + tenAndUnit;
            return word;
        }

        public String inThousands(int num, int digit){

            int thousands = 0;      
            int hundredsAndOthers = num%1000;
            String thousand = "";
            String hundredAndOther = "";
            String word = "";
            if(digit == 5)
            {
                thousands = num/1000;
                thousand = inTens(thousands, 2);            
            }
            else if(digit == 4)
            {
                thousands = num/1000;
                thousand = inTens(thousands, 1);
            }

            if(hundredsAndOthers/100 == 0) // in case of "023"
                hundredAndOther = inTens(hundredsAndOthers, 2);
            else
                hundredAndOther = inHundreds(hundredsAndOthers, 3);

            word = thousand + " thousand " + hundredAndOther;

            return word;
        }
    }

0
import java.lang.*;
import java.io.*;
public class rupee
{
public static void main(String[] args)throws  IOException
{

 int len=0,revnum=0,i,dup=0,j=0,k=0;
 int gvalue;
  String[] ones={"one","Two","Three","Four","Five","Six","Seven","Eight","Nine","Eleven","Twelve","Thirteen","Fourteen","Fifteen","Sixteen","Seventeen","Eighteen","Nineteen",""};
    String[] twos={"Ten","Twenty","Thirty","Fourty","fifty","Sixty","Seventy","eighty","Ninety",""};
System.out.println("\n Enter value");
InputStreamReader b=new InputStreamReader(System.in);
BufferedReader br=new BufferedReader(b);
gvalue=Integer.parseInt(br.readLine());
if(gvalue==10)

System.out.println("Ten");

else if(gvalue==100)

System.out.println("Hundred");

else if(gvalue==1000)
System.out.println("Thousand");

dup=gvalue;
for(i=0;dup>0;i++)
{
revnum=revnum*10+dup%10;
len++;
dup=dup/10;
}
while(j<len)
{
if(gvalue<10)
{
System.out.println(ones[gvalue-1]);
}
else if(gvalue>10&&gvalue<=19)
{
System.out.println(ones[gvalue-2]);
break;
}
else if(gvalue>19&&gvalue<100)
{
k=gvalue/10;
gvalue=gvalue%10;
System.out.println(twos[k-1]);
}
else if(gvalue>100&&gvalue<1000)
{
k=gvalue/100;
gvalue=gvalue%100;
System.out.println(ones[k-1] +"Hundred");
}
else if(gvalue>=1000&&gvalue<9999)
{
k=gvalue/1000;
gvalue=gvalue%1000;
System.out.println(ones[k-1]+"Thousand");
    }
else if(gvalue>=11000&&gvalue<=19000)
{
    k=gvalue/1000;
    gvalue=gvalue%1000;
    System.out.println(twos[k-2]+"Thousand");
}       
else if(gvalue>=12000&&gvalue<100000)
{
k=gvalue/10000;
    gvalue=gvalue%10000;
System.out.println(ones[gvalue-1]);
}
else
{
System.out.println("");
    }
j++;
}
}
}

0

Questo è un altro modo ... (con portata limitata)

public static String numToWord(Integer i) {

 final  String[] units = { "Zero", "One", "Two", "Three",
        "Four", "Five", "Six", "Seven", "Eight", "Nine", "Ten", "Eleven",
        "Twelve", "Thirteen", "Fourteen", "Fifteen", "Sixteen",
        "Seventeen", "Eighteen", "Nineteen" };
 final  String[] tens = { "", "", "Twenty", "Thirty", "Forty",
        "Fifty", "Sixty", "Seventy", "Eighty", "Ninety" };
    if (i < 20)
        return units[i];
    if (i < 100)
        return tens[i / 10] + ((i % 10 > 0) ? " " + numToWord(i % 10) : "");
    if (i < 1000)
        return units[i / 100] + " Hundred"
                + ((i % 100 > 0) ? " and " + numToWord(i % 100) : "");
    if (i < 1000000)
        return numToWord(i / 1000) + " Thousand "
                + ((i % 1000 > 0) ? " " + numToWord(i % 1000) : "");
    return numToWord(i / 1000000) + " Million "
            + ((i % 1000000 > 0) ? " " + numToWord(i % 1000000) : "");
}

0

L'ho implementato in questo modo

package com.stack.overflow.number.in.english;

import java.util.ResourceBundle;

public class ActualImplementation {

    public static ResourceBundle readPropertyFile = ResourceBundle
            .getBundle("NumberEnglishRepresentation");

    public static void main(String[] args) {
        System.out.println(ActualImplementation.main(-2));
    }

    public static String main(Integer number) {
        int power;
        // Calculate Number of digits

        Integer numberOfDigits = number > 0 ? (int) Math.log10((double) number) + 1
                : 1;
        String output = "";
        // If number is negative convert it to positive an append minus to
        // output
        if (Integer.signum(number) == -1) {
            output = "minus ";
            number = number < 0 ? number * -1 : number;
        }
        String stringVal = String.valueOf(number);

        if (number <= 20 || number == 30 || number == 40 || number == 50
                || number == 60 || number == 70 || number == 80 || number == 90
                || number == 100 || number == 1000)
            output += readPropertyFile.getString(stringVal);

        else {
            int i;
            for (i = 0; i < numberOfDigits; i++) {

                if (number != 0) {

                    numberOfDigits = number > 0 ? (int) Math
                            .log10((double) number) + 1 : 1;

                    power = (int) Math.pow(10, numberOfDigits - 1);
                    // If number is like 10,001 then print ten first and then
                    // remaining value
                    if (numberOfDigits >= 5 && numberOfDigits % 2 == 1) {
                        power = (int) Math.pow(10, numberOfDigits - 2);
                    }

                    if (readPropertyFile.containsKey(String.valueOf(number)))
                        output += readPropertyFile.getString(String
                                .valueOf(number));
                    else {
                        // As the digits at units and tens place are read
                        // differently
                        if (numberOfDigits > 2) {

                            output += readPropertyFile.getString(String
                                    .valueOf(number / power))
                                    + readPropertyFile.getString(String
                                            .valueOf(power));
                        } else {
                            output += readPropertyFile.getString(String
                                    .valueOf(number - number % power));

                        }
                    }
                    number = (int) (number % power);

                }
            }
        }

        return output;
    }
}

e il file di risorse è:

0=zero
1=one
2=two
3=three
4=four
5=five
6=six
7=seven
8=eight
9=nine
10=ten 


11=eleven
12=twelve
13=thirteen
14=fourteen
15fifteen
16=sixteen
17=seventeen
18=eighteen
19=nineteen
20=twenty

30=thirty
40=fourty
50=fifty
60=sixty
70=seventy
80=eighty
90=ninety

100=hundred
1000=thousand
100000=Lakh

Questo è implementato solo fino a 10 lakh


0
public class NumberConverter {

    private String[] singleDigit = {"", " one", " two", " three",
    " four", " five"," six", " seven", " eight", " nine"};

    private String[] tens = {" ten", " eleven", " twelve", " thirteen",
            " fourteen", " fifteen"," sixteen", " seventeen", " eighteen", " nineteen"};

    private String[] twoDigits = {"", "", " twenty", " thirty",
            " forty", " fifty"," sixty", " seventy", " eighty", " ninety"};

    public String convertToWords(String input) {
        long number = Long.parseLong(input);
        int size = input.length();
        if (size <= 3) {
            int num = (int) number;
            return handle3Digits(num);
        } else if (size > 3 && size <= 6) {
            int thousand = (int)(number/1000);
            int hundred = (int) (number % 1000);
            String thousands = handle3Digits(thousand);

            String hundreds = handle3Digits(hundred);
            String word = "";

            if (!thousands.isEmpty()) {
                word = thousands +" thousand";
            }
            word += hundreds;
            return word;
        } else if (size > 6 && size <= 9) {
            int million = (int) (number/ 1000000);
            number = number % 1000000;
            int thousand = (int)(number/1000);
            int hundred = (int) (number % 1000);

            String millions = handle3Digits(million);
            String thousands = handle3Digits(thousand);
            String hundreds = handle3Digits(hundred);

            String word = "";

            if (!millions.isEmpty()) {
                word = millions +" million";
            }
            if (!thousands.isEmpty()) {
                word += thousands +" thousand";
            }
            word += hundreds;
            return word;
        }

        return "Not implemented yet.";
    }


    private String handle3Digits(int number) {
        if (number <= 0)
            return "";

        String word = "";
        if (number/100 > 0) {
            int dividend = number/100;
            word = singleDigit[dividend] + " hundred";
            number = number % 100;
        }
        if (number/10 > 1) {
            int dividend = number/10;
            number = number % 10;
            word += twoDigits[dividend];
        } else if (number/10 == 1) {
            number = number % 10;
            word += tens[number];
            return word;
        } else {
            number = number % 10;
        }
        if (number > 0) {
            word += singleDigit[number];
        }

        return word;
    }
}

0

La stessa risposta accettata (Jigar Joshi), ma ora in spagnolo. Sentiti libero di cambiarlo se trovi un errore. Più facile del francese, ma basato su quello però ...

Spagnolo:

import java.text.*;

class SpanishNumberToWords {
  private static final String[] tensNames = {
    "",
    "",
    "veinte",
    "treinta",
    "cuarenta",
    "cincuenta",
    "sesenta",
    "setenta",
    "ochenta",
    "noventa"
  };

  private static final String[] unitNames1 = {
    "",
    "un",
    "dos",
    "tres",
    "cuatro",
    "cinco",
    "seis",
    "siete",
    "ocho",
    "nueve",
    "diez",
    "once",
    "doce",
    "trece",
    "catorce",
    "quince",
    "dieciseis",
    "diecisiete",
    "dieciocho",
    "diecinueve",
    "veinte",
    "veintiun",
    "veintidos",
    "veintitres",
    "veinticuatro",
    "veinticinco",
    "veintiseis",
    "veintisiete",
    "veintiocho",
    "veintinueve",
  };

  private static final String[] unitNames2 = {
    "",
    "",
    "dosc",
    "tresc",
    "cuatroc",
    "quin",
    "seisc",
    "setec",
    "ochoc",
    "novec",
    "diez"
  };

  private SpanishNumberToWords() {}

  private static String convertZeroToHundred(int number) {

    int theTens = number / 10;
    int theUnit = number % 10;
    String result = "";

    // separator
    String theSeparator = "";
    if (theTens > 1) {
        theSeparator = " y ";
    }
    // particular cases
    switch (theUnit) {
    case 0:
        theSeparator = "";
      break;
    default:
    }

    // tens in letters
    switch (theTens) {
    case 0:
        result = unitNames1[theUnit];
      break;
    case 1: case 2:
        result =  unitNames1[theTens*10+theUnit];
        break;
    default :
        result = tensNames[theTens]
                              + theSeparator + unitNames1[theUnit];
    }
    return result;
  }

  private static String convertLessThanOneThousand(int number) {

    int theHundreds = number / 100;
    int leReste = number % 100;
    String sReste = convertZeroToHundred(leReste);

    String result;
    switch (theHundreds) {
    case 0:
        result = sReste;
      break;
    case 1 :
      if (leReste > 0) {
          result = "ciento " + sReste;
      }
      else {
          result = "cien";
      }
      break;
    default :
      if (leReste > 0) {
          result = unitNames2[theHundreds] + "ientos " + sReste;
      }
      else {
          result = unitNames2[theHundreds] + "ientos";
      }
    }
    return result;
  }

  public static String convert(long number) {
    // 0 à 999 999 999 999
    if (number == 0) { return "cero"; }

    String snumber = Long.toString(number);

    // pad des "0"
    String mask = "000000000000";
    DecimalFormat df = new DecimalFormat(mask);
    snumber = df.format(number);

    // XXXnnnnnnnnn
    int theMilliards = Integer.parseInt(snumber.substring(0,3));
    // nnnXXXnnnnnn
    int theMillions  = Integer.parseInt(snumber.substring(3,6));
    // nnnnnnXXXnnn
    int theCentMiles = Integer.parseInt(snumber.substring(6,9));
    // nnnnnnnnnXXX
    int lesMille = Integer.parseInt(snumber.substring(9,12));

    String tradMilliards;
    switch (theMilliards) {
    case 0:
      tradMilliards = "";
      break;
    case 1 :
      tradMilliards = convertLessThanOneThousand(theMilliards)
         + " mil millones ";
      break;
    default :
      tradMilliards = convertLessThanOneThousand(theMilliards)
         + " mil millones ";
    }
    String resultat =  tradMilliards;

    String tradMillions;
    switch (theMillions) {
    case 0:
      tradMillions = "";
      break;
    case 1 :
      tradMillions = convertLessThanOneThousand(theMillions)
         + " millon ";
      break;
    default :
      tradMillions = convertLessThanOneThousand(theMillions)
         + " millones ";
    }
    resultat =  resultat + tradMillions;

    String tradCentMille;
    switch (theCentMiles) {
    case 0:
      tradCentMille = "";
      break;
    case 1 :
      tradCentMille = "mil ";
      break;
    default :
      tradCentMille = convertLessThanOneThousand(theCentMiles)
         + " mil ";
    }
    resultat =  resultat + tradCentMille;

    String tradMille;
    tradMille = convertLessThanOneThousand(lesMille);
    resultat =  resultat + tradMille;

    return resultat;
  }

  public static void main(String[] args) {
    System.out.println("*** " + SpanishNumberToWords.convert(0));
    System.out.println("*** " + SpanishNumberToWords.convert(1));
    System.out.println("*** " + SpanishNumberToWords.convert(2));
    System.out.println("*** " + SpanishNumberToWords.convert(3));
    System.out.println("*** " + SpanishNumberToWords.convert(4));
    System.out.println("*** " + SpanishNumberToWords.convert(5));
    System.out.println("*** " + SpanishNumberToWords.convert(7));
    System.out.println("*** " + SpanishNumberToWords.convert(12));
    System.out.println("*** " + SpanishNumberToWords.convert(16));
    System.out.println("*** " + SpanishNumberToWords.convert(19));
    System.out.println("*** " + SpanishNumberToWords.convert(21));
    System.out.println("*** " + SpanishNumberToWords.convert(24));
    System.out.println("*** " + SpanishNumberToWords.convert(28));
    System.out.println("*** " + SpanishNumberToWords.convert(29));
    System.out.println("*** " + SpanishNumberToWords.convert(30));
    System.out.println("*** " + SpanishNumberToWords.convert(31));
    System.out.println("*** " + SpanishNumberToWords.convert(42));
    System.out.println("*** " + SpanishNumberToWords.convert(71));
    System.out.println("*** " + SpanishNumberToWords.convert(72));
    System.out.println("*** " + SpanishNumberToWords.convert(80));
    System.out.println("*** " + SpanishNumberToWords.convert(81));
    System.out.println("*** " + SpanishNumberToWords.convert(89));
    System.out.println("*** " + SpanishNumberToWords.convert(90));
    System.out.println("*** " + SpanishNumberToWords.convert(91));
    System.out.println("*** " + SpanishNumberToWords.convert(97));
    System.out.println("*** " + SpanishNumberToWords.convert(100));
    System.out.println("*** " + SpanishNumberToWords.convert(101));
    System.out.println("*** " + SpanishNumberToWords.convert(110));
    System.out.println("*** " + SpanishNumberToWords.convert(120));
    System.out.println("*** " + SpanishNumberToWords.convert(200));
    System.out.println("*** " + SpanishNumberToWords.convert(201));
    System.out.println("*** " + SpanishNumberToWords.convert(232));
    System.out.println("*** " + SpanishNumberToWords.convert(999));
    System.out.println("*** " + SpanishNumberToWords.convert(521));
    System.out.println("*** " + SpanishNumberToWords.convert(912));
    System.out.println("*** " + SpanishNumberToWords.convert(999));
    System.out.println("*** " + SpanishNumberToWords.convert(1000));
    System.out.println("*** " + SpanishNumberToWords.convert(1001));
    System.out.println("*** " + SpanishNumberToWords.convert(10000));
    System.out.println("*** " + SpanishNumberToWords.convert(10001));
    System.out.println("*** " + SpanishNumberToWords.convert(100000));
    System.out.println("*** " + SpanishNumberToWords.convert(267578));
    System.out.println("*** " + SpanishNumberToWords.convert(3000000000L));
    System.out.println("*** " + SpanishNumberToWords.convert(2147483647));
    /*
     *** OUTPUT
        *** cero
        *** un
        *** dos
        *** tres
        *** cuatro
        *** cinco
        *** siete
        *** doce
        *** dieciseis
        *** diecinueve
        *** veintiun
        *** veinticuatro
        *** veintiocho
        *** veintinueve
        *** treinta
        *** treinta y un
        *** cuarenta y dos
        *** setenta y un
        *** setenta y dos
        *** ochenta
        *** ochenta y un
        *** ochenta y nueve
        *** noventa
        *** noventa y un
        *** noventa y siete
        *** cien
        *** ciento un
        *** ciento diez
        *** ciento veinte
        *** doscientos
        *** doscientos un
        *** doscientos treinta y dos
        *** novecientos noventa y nueve
        *** quinientos veintiun
        *** novecientos doce
        *** novecientos noventa y nueve
        *** mil 
        *** mil un
        *** diez mil 
        *** diez mil un
        *** cien mil 
        *** doscientos sesenta y siete mil quinientos setenta y ocho
        *** tres mil millones 
        *** dos mil millones ciento cuarenta y siete millones cuatrocientos ochenta y tres mil seiscientos cuarenta y siete
     */
  }

1
Puoi anche usare ICUJ, ho messo un esempio qui gist.github.com/earth001/bf30be16489e1c2538ac3dd55d9ffc94
SHoko

0

Questo programma può convertire fino a 102 cifre di numeri lunghi. Suggerimenti e commenti sono molto apprezzati.

package com.kegeesoft;
/**
 * @author Chandana Gamage +94 710 980 120
 * @author maheshgamage375@gmail.com
 * @author KeGee Software Solutions
 */
import java.math.BigDecimal;
import java.math.BigInteger;

public class Converter {
    private final BigInteger zero = new BigInteger("0");        
    private final BigInteger scale[] = new BigInteger[33];                                        
    private final String scaleName[] = {" Duotrigintillion"," Untrigintillion"," Trigintillion",
                                        " Nonvigintillion"," Octovigintillion"," Septvigintillion",
                                        " Sexvigintillion"," Quinvigintillion"," Quattuorvigintillion",
                                        " Trevigintillion"," Duovigintillion"," Unvigintillion",
                                        " Vigintillion"," Novemdecillion"," Octodecillion",
                                        " Septemdecillion"," Sexdecillion"," Quindecillion",
                                        " Quattuordecillion "," Tredecillion"," Duodecillion",
                                        " Undecillion"," Decillion"," Nonillion"," Octillion",
                                        " Septillion"," Sextillion"," Quintillion"," Quadrillion",
                                        " Trillion"," Billion"," Million"," Thousand"};
    private final String ones[] = {""," One"," Two"," Three"," Four"," Five"," Six"," Seven"," Eight"," Nine",
                                   " Ten"," Eleven"," Twelve"," Thirteen"," Fourteen"," Fifteen"," Sixteen",
                                   " Seventeen"," Eighteen"," Nineteen"};    
    private final String tens[] = {"",""," Twenty"," Thirty"," Forty"," Fifty"," Sixty"," Seventy"," Eighty"," Ninety"};
    private int index = 0;    
    private String shortValueInWords = "";
    private String output = "";
    private String decimalInWords = "";
    private String valueInWords;

    public String setValue(BigInteger value) throws Exception{
        return this.bigValueInWords(value);
    }

    public String setValue(BigDecimal value) throws Exception{
        int indexOfDecimalPoint = (value.toString()).indexOf(".");

        // Split and pass interger value of given decimal value to constructor
        String tempIntValue = (value.toString()).substring(0, indexOfDecimalPoint);
        BigInteger intValue = new BigInteger(tempIntValue);

        // Split and pass decimal value of given decimal value to constructor
        String tempDeciValue = (value.toString()).substring(indexOfDecimalPoint+1, value.toString().length());
        BigInteger deciValue = new BigInteger(tempDeciValue);

        this.bigValueInWords(intValue);
        this.decimalValueInWords(deciValue);
        return null;
    }

    public String setValue(BigDecimal value, String currencyName, String centsName) throws Exception{
        int indexOfDecimalPoint = (value.toString()).indexOf(".");

        // Split and pass interger value of given decimal value to constructor
        String tempIntValue = (value.toString()).substring(0, indexOfDecimalPoint);
        BigInteger intValue = new BigInteger(tempIntValue);

        // Split and pass decimal value of given decimal value to constructor
        String tempDeciValue = (value.toString()).substring(indexOfDecimalPoint+1, value.toString().length());
        @SuppressWarnings("UnusedAssignment")
        BigInteger deciValue = null;

        // Concatenate "0" if decimal value has only single digit
        if(tempDeciValue.length() == 1){
            deciValue = new BigInteger(tempDeciValue.concat("0"));
        }else{
            deciValue = new BigInteger(tempDeciValue);
        }

        this.output = currencyName+" ";
        this.bigValueInWords(intValue);
        this.centsValueInWords(deciValue, centsName);

        return null;
    }

    private String bigValueInWords(BigInteger value) throws Exception{
        // Build scale array
        int exponent = 99;
        for (int i = 0; i < scale.length; i++) {
            scale[i] = new BigInteger("10").pow(exponent);
            exponent = exponent - 3;
        }

        /* Idntify whether given value is a minus value or not
            if == yes then pass value without minus sign
            and pass Minus word to output
        */
        if(value.compareTo(zero) == -1){
            value = new BigInteger(value.toString().substring(1,value.toString().length()));
            output += "Minus ";
        }

        // Get value in words of big numbers (duotrigintillions to thousands)
        for (int i=0; i < scale.length; i++) {
            if((value.divide(scale[i])).compareTo(zero)==1){
            this.index = (int)(value.divide(scale[i])).intValue();
            output += shortValueInWords(this.index) + scaleName[i];
            value = value.mod(scale[i]);
            }
        }

        // Get value in words of short numbers (hundreds, tens and ones)
        output += shortValueInWords((int)(value.intValue()));

        // Get rid of any space at the beginning of output and return value in words
        return this.valueInWords = output.replaceFirst("\\s", "");
    }

    private String shortValueInWords(int shortValue) throws Exception{
        // Get hundreds
        if(String.valueOf(shortValue).length()==3){
            shortValueInWords = ones[shortValue / 100]+" Hundred"+shortValueInWords(shortValue % 100);
        }

        // Get tens
        if(String.valueOf(shortValue).length()== 2 && shortValue >= 20){
            if((shortValue / 10)>=2 && (shortValue % 10)>=0){
                shortValueInWords = tens[shortValue / 10] + ones[shortValue % 10];
            }
        }

        // Get tens between 10 and 20
        if(String.valueOf(shortValue).length()== 2 && shortValue >= 10 && shortValue < 20){
            shortValueInWords = ones[shortValue];
        }

        // Get ones
        if(String.valueOf(shortValue).length()==1){
            shortValueInWords = ones[shortValue];
        }

        return this.shortValueInWords;
    }

    private String decimalValueInWords(BigInteger decimalValue) throws Exception{
        decimalInWords = " Point";
        // Get decimals in point form (0.563 = zero point five six three)
        for(int i=0; i < (decimalValue.toString().length()); i++){
            decimalInWords += ones[Integer.parseInt(String.valueOf(decimalValue.toString().charAt(i)))];
        }

        return this.decimalInWords;
    }

    private String centsValueInWords(BigInteger decimalValue, String centsName) throws Exception{
        decimalInWords = " and"+" "+centsName;

        // Get cents in words (5.52 = five and cents fifty two)
        if(decimalValue.intValue() == 0){
            decimalInWords += shortValueInWords(decimalValue.intValue())+" Zero only";
        }else{
            decimalInWords += shortValueInWords(decimalValue.intValue())+" only";
        }


        return this.decimalInWords;
    }

    public String getValueInWords(){
        return this.valueInWords + decimalInWords;
    }

    public static void main(String args[]){
        Converter c1 = new Converter();
        Converter c2 = new Converter();
        Converter c3 = new Converter();
        Converter c4 = new Converter();

        try{
            // Get integer value in words
            c1.setValue(new BigInteger("15634886"));
            System.out.println(c1.getValueInWords());

            // Get minus integer value in words
            c2.setValue(new BigInteger("-15634886"));
            System.out.println(c2.getValueInWords());

            // Get decimal value in words
            c3.setValue(new BigDecimal("358621.56895"));
            System.out.println(c3.getValueInWords());

            // Get currency value in words
            c4.setValue(new BigDecimal("358621.56"),"Dollar","Cents");
            System.out.println(c4.getValueInWords());
        }catch(Exception e){
            e.printStackTrace();
        }
    }
}

0

Ecco una classe NumberInWords.java molto semplice che può svolgere il lavoro molto facilmente:

String numberInWords = NumberInWords.convertNumberToWords(27546); //twenty seven thousand and five hundred forty six

È importante sapere che questa classe è in grado di convertire solo il tipo di dati int.


-1
    import java.util.Scanner;

public class StringToNum {
public static void main(String args[])
  {
    Scanner sc=new Scanner(System.in);
    System.out.println("Enter the no: ");
    int  no=sc.nextInt();
    int arrNum[]=new int[10];
    int i=0;
    while(no!=0)
    {
      arrNum[i]=no%10;
      no=no/10;
      i++;
    }
    int len=i;
    int arrNum1[]=new int[len];
    int j=0;
    for(int k=len-1;k>=0;k--)
    {
        arrNum1[j]=arrNum[k];
        j++;
    }
    StringToNum stn=new StringToNum();
    String output="";
    switch(len)
    {
      case 1:
      {
         output+=stn.strNum1(arrNum1[len-1]);
         System.out.println("output="+output);
         break;
      }
      case 2:
      {
        int no1=arrNum1[len-2]*10+arrNum1[len-1];
        if(no1>=11 & no1<=19)
        {
         output=stn.strNum2(no1);
        // output=output+" "+stn.strNum1(arrNum1[len-1]);
         System.out.println("output="+output);
        }
        else
        {
         arrNum1[len-2]=arrNum1[len-2]*10;
         output+=stn.strNum2(arrNum1[len-2]);
         output=output+" "+stn.strNum1(arrNum1[len-1]);
         System.out.println("output="+output);
        }
         break;
      }
      case 3:
      {
        output=stn.strNum1(arrNum1[len-3])+" hundred ";
        int no1=arrNum1[len-2]*10+arrNum1[len-1];
        if(no1>=11 & no1<=19)
        {
         output=stn.strNum2(no1);
        }
        else
        {
         arrNum1[len-2]=arrNum1[len-2]*10;
         output+=stn.strNum2(arrNum1[len-2]);
         output=output+" "+stn.strNum1(arrNum1[len-1]);
        }
        System.out.println("output="+output);  
        break;
      }
      case 4:
      {
        output=stn.strNum1(arrNum1[len-4])+" thousand ";
        if(!stn.strNum1(arrNum1[len - 3]).equals(""))
        {
        output+=stn.strNum1(arrNum1[len-3])+" hundred ";
        }
        int no1=arrNum1[len-2]*10+arrNum1[len-1];
        if(no1>=11 & no1<=19)
        {
         output=stn.strNum2(no1);
        }
        else
        {
         arrNum1[len-2]=arrNum1[len-2]*10;
         output+=stn.strNum2(arrNum1[len-2]);
         output=output+" "+stn.strNum1(arrNum1[len-1]);
        }
        System.out.println("output="+output);
        break;
      }

      case 5:
      {
        int no1=arrNum1[len-5]*10+arrNum1[len-4];
        if(no1>=11 & no1<=19)
        {
         output=stn.strNum2(no1)+" thousand ";
        }
        else
        {
         arrNum1[len-5]=arrNum1[len-5]*10;
         output+=stn.strNum2(arrNum1[len-5]);
         output=output+" "+stn.strNum1(arrNum1[len-4])+" thousand ";
        }
        if( !stn.strNum1(arrNum1[len - 3]).equals(""))
        {
        output+=stn.strNum1(arrNum1[len-3])+" hundred ";
        }
        no1 = arrNum1[len - 2] * 10 + arrNum1[len - 1];
        if(no1>=11 & no1<=19)
        {
         output=stn.strNum2(no1);
        }
        else
        {
         arrNum1[len-2]=arrNum1[len-2]*10;
         output+=stn.strNum2(arrNum1[len-2]);
         output=output+" "+stn.strNum1(arrNum1[len-1]);
        }
        System.out.println("output="+output);
        break;
      }
      case 6:
      {
        output+=stn.strNum1(arrNum1[len-6])+" million ";
        int no1=arrNum1[len-5]*10+arrNum1[len-4];
        if(no1>=11 & no1<=19)
        {
         output+=stn.strNum2(no1)+" thousand ";
        }
        else
        {
         arrNum1[len-5]=arrNum1[len-5]*10;
         output+=stn.strNum2(arrNum1[len-5]);
         output=output+" "+stn.strNum1(arrNum1[len-4])+" thousand ";
        }
        if( !stn.strNum1(arrNum1[len - 3]).equals(""))
        {
        output+=stn.strNum1(arrNum1[len-3])+" hundred ";
        }
        no1 = arrNum1[len - 2] * 10 + arrNum1[len - 1];
        if(no1>=11 & no1<=19)
        {
         output=stn.strNum2(no1);
        }
        else
        {
         arrNum1[len-2]=arrNum1[len-2]*10;
         output+=stn.strNum2(arrNum1[len-2]);
         output=output+" "+stn.strNum1(arrNum1[len-1]);
        }
        System.out.println("output="+output);
        break;
      }
      case 7:
      {
        int no1=arrNum1[len-7]*10+arrNum1[len-6];
        if(no1>=11 & no1<=19)
        {
         output=stn.strNum2(no1)+" Milloin ";
        }
        else
        {
         arrNum1[len-7]=arrNum1[len-7]*10;
         output+=stn.strNum2(arrNum1[len-7]);
         output=output+" "+stn.strNum1(arrNum1[len-6])+" Million ";
        }
        no1=arrNum1[len-5]*10+arrNum1[len-4];
        if(no1>=11 & no1<=19)
        {
         output=stn.strNum2(no1)+" Thousand ";
        }
        else
        {
         arrNum1[len-5]=arrNum1[len-5]*10;
         output+=stn.strNum2(arrNum1[len-5]);
         output=output+" "+stn.strNum1(arrNum1[len-4])+" Thousand ";
        }
        if( !stn.strNum1(arrNum1[len - 3]).equals(""))
        {
        output+=stn.strNum1(arrNum1[len-3])+" Hundred ";
        }
        no1 = arrNum1[len - 2] * 10 + arrNum1[len - 1];
        if(no1>=11 & no1<=19)
        {
         output=stn.strNum2(no1);
        }
        else
        {
         arrNum1[len-2]=arrNum1[len-2]*10;
         output+=stn.strNum2(arrNum1[len-2]);
         output=output+" "+stn.strNum1(arrNum1[len-1]);
        }
        System.out.println("output="+output);
        break;
      }
    }

  }
  String strNum1(int a)
  {
    String op="";
    switch(a)
    {
     case 1:
     {
     op="one";
     break;
     }
     case 2:
     {
     op="two";
     break;
     }
     case 3:
     {
     op="three";
     break;
     }
     case 4:
     {
     op="four";
     break;
     }
     case 5:
     {
     op="five";
     break;
     }
     case 6:
     {
     op="six";
     break;
     }
     case 7:
     {
     op="seven";
     break;
     }
     case 8:
     {
     op="eight";
     break;
     }
     case 9:
     {
     op="nine";
     break;
     }
    }
    return op;
  }
  String strNum2(int a)
  {
    String op="";
    switch(a)
    {
     case 10:
     {
     op="ten";
     break;
     }
     case 20:
     {
     op="twenty";
     break;
     }
     case 30:
     {
     op="thirty";
     break;
     }
     case 40:
     {
     op="fourty";
     break;
     }
     case 50:
     {
     op="fifty";
     break;
     }
     case 60:
     {
     op="sixty";
     break;
     }
     case 70:
     {
     op="seventy";
     break;
     }
     case 80:
     {
     op="eighty";
     break;
     }
     case 90:
     {
     op="ninty";
     break;
     }
     case 11:
     {
     op="eleven";
     break;
     }
     case 12:
     {
     op="twelve";
     break;
     }
     case 13:
     {
     op="thirteen";
     break;
     }
     case 14:
     {
     op="fourteen";
     break;
     }
     case 15:
     {
     op="fifteen";
     break;
     }
     case 16:
     {
     op="sixteen";
     break;
     }
     case 17:
     {
     op="seventeen";
     break;
     }
     case 18:
     {
     op="eighteen";
     break;
     }
     case 19:
     {
     op="nineteen";
     break;
     }
    }
    return op;
  }
}

-4

Ho usato un array a 2 dimensioni ...

   import java.util.Scanner;


   public class numberEnglish {
   public static void main(String args[])
        {
    String[ ][ ] aryNumbers = new String[9][4];
    aryNumbers[0][0] = "one";
    aryNumbers[0][1] = "ten";
    aryNumbers[0][2] = "one hundred and";
    aryNumbers[0][3] = "one thousand";

    aryNumbers[1][0] = "two";
    aryNumbers[1][1] = "twenty";
    aryNumbers[1][2] = "two hundred and";
    aryNumbers[1][3] = "two thousand";

    aryNumbers[2][0] = "three";
    aryNumbers[2][1] = "thirty";
    aryNumbers[2][2] = "three hundred and";
    aryNumbers[2][3] = "three thousand";

    aryNumbers[3][0] = "four";
    aryNumbers[3][1] = "fourty";
    aryNumbers[3][2] = "four hundred and";
    aryNumbers[3][3] = "four thousand";

    aryNumbers[4][0] = "five";
    aryNumbers[4][1] = "fifty";
    aryNumbers[4][2] = "five hundred and";
    aryNumbers[4][3] = "five thousand";

    aryNumbers[5][0] = "six";
    aryNumbers[5][1] = "sixty";
    aryNumbers[5][2] = "six hundred and";
    aryNumbers[5][3] = "six thousand";

    aryNumbers[6][0] = "seven";
    aryNumbers[6][1] = "seventy";
    aryNumbers[6][2] = "seven hundred and";
    aryNumbers[6][3] = "seven thousand";

    aryNumbers[7][0] = "eight";
    aryNumbers[7][1] = "eighty";
    aryNumbers[7][2] = "eight hundred and";
    aryNumbers[7][3] = "eight thousand";

    aryNumbers[8][0] = "nine";
    aryNumbers[8][1] = "ninty";
    aryNumbers[8][2] = "nine hundred and";
    aryNumbers[8][3] = "nine thousand";


    //System.out.println(aryNumbers[0] + " "+aryNumbers[0] + " ");

    int number=0;
    Scanner sc = new Scanner(System.in);
    System.out.println(" Enter Number 4 digited number:: ");
    number = sc.nextInt();
    int temp = number;
    int count=1;
    String english="";
    String tenglish = "";
    if(number == 0)
    {
        System.out.println("*********");
        System.out.println("Zero");
        System.out.println("*********");
        sc.close();
        return;
    }
    while(temp !=0)
    {

        int r = temp%10;
        if(r==0)
        {
            tenglish = " zero ";
            count++;
        }
        else
        {

            int t1=r-1;
            int t2 = count-1;
            //System.out.println(t1 +" "+t2);
            count++;
            tenglish = aryNumbers[t1][t2];

            //System.out.println(aryNumbers[t1][t2]);
        }
        english = tenglish +" "+ english;
        temp = temp/10;

    }
    //System.out.println(aryNumbers[0][0]);
    english = english.replace("ten  zero", "ten");
    english = english.replace("twenty  zero", "twenty");
    english = english.replace("thirty  zero", "thirty");
    english = english.replace("fourty  zero", "fourty");
    english = english.replace("fifty  zero", "fifty");
    english = english.replace("sixty  zero", "sixty");
    english = english.replace("seventy  zero", "seventy");
    english = english.replace("eighty  zero", "eighty");
    english = english.replace("ninety  zero", "ninety");

    english = english.replace("ten one", "eleven");
    english = english.replace("ten two", "twelve");
    english = english.replace("ten three", "thirteen");
    english = english.replace("ten four", "fourteen");
    english = english.replace("ten five", "fifteen");
    english = english.replace("ten six", "sixteen");
    english = english.replace("ten seven", "seventeen");
    english = english.replace("ten eight", "eighteen");
    english = english.replace("ten nine", "nineteen");
    english = english.replace(" zero ", "");
    int length = english.length();
    String sub = english.substring(length-6,length-3);
    //System.out.println(length);
    //System.out.println(sub);
    if(sub.equals("and"))
    {
        //System.out.println("hello");
        english=english.substring(0,length-6);
    }
    System.out.println("********************************************");
    System.out.println(english);
    System.out.println("********************************************");
    sc.close();
}

}


Questo codice ha un bug. Hai scritto 90 come "novanta" in una posizione e "novanta" in un'altra.
nessuno il
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