Java の標準数学ライブラリには、数値を単語表現に変換する関数が提供されていますか?

Java で数値を単語に変換する方法

背景

現在、静的配列と数値を使用して数値を単語に変換する基本的なメカニズムが用意されています。数字の大きさに基づいてそれらを英語のテキストに翻訳します。ただし、このアプローチでは、非常に大きな数値を伴う課題に直面します。

<br>10183 = 10,183<br>90 = 90<br>5888 = 5,0880 Eight<br>

質問

この目的に利用できる数学ライブラリの中に簡単な関数はありますか?

回答

これがコードです。SE にはメソッドがないと思います。

それ基本的に、数値を文字列に変換し、解析して、その重みに関連付けます。

例:

<br>1000<br>&lt ;/pre></p>
<p>1 は千の位として扱われ、1 は</p>
<p>Web サイトのコードは次のとおりです:</p>
<p><strong>English</strong></p>
<p><pre class="brush:php;toolbar:false"><br>import java.text.DecimalFormat;</p>
<p>public class EnglishNumberToWords {</p>
<p>private static Final String[] tensNames = {</p>
<div class="code" style="position:relative; padding:0px; margin:0px;"><pre class="brush:php;toolbar:false">"",
" ten",
" twenty",
" thirty",
" forty",
" fifty",
" sixty",
" seventy",
" eighty",
" ninety"

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};

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 数値) {

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 数値) {

// 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", " ");

}

/**

• テスト
• @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
英語版とはかなり異なりますが、フランス語はかなり違いますもっと難しい!

<br>package com.rgagnon.howto;</p>
<p>import java.text.*;</p>
<p>class FrenchNumberToWords {<br> private static Final文字列[] dizaineNames = {</p>
<div class="code" style="position:relative; padding:0px; margin:0px;"><pre class="brush:php;toolbar:false">"",
"",
"vingt",
"trente",
"quarante",
"cinquante",
"soixante",
"soixante",
"quatre-vingt",
"quatre-vingt"

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