这是代码，我认为SE中没有任何方法。
它基本上将数字转换为字符串并解析String并将其与权重相关联
例如
1000
1被视为千位，由于位置而
1映射到
"one"千位
这是来自网站的代码：
English
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", " "); } 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)); }}Français 与英语版本完全不同，但法语要困难得多！
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)); }}你可以通过两次调用“ convert”方法来处理“ dollar and cent”转换。
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" ;
+
使用DBMS内置功能的另一种方式（如果可用）。对于Oracle
SQL> select to_char(to_date(873,'J'), 'JSP') as converted_form from dual;CONVERTED_FORM---------------------------EIGHT HUNDRED SEVENTY-THREESQL>'JSP' means :J : the Julian format.SP : spells the word for the number passed to to_date
