java - 需要帮助在 Java 中将数字转换为单词

Question

我正在开发一个将数字转换为单词的程序，但我在使用 Numbers 类中的 toString() 方法时遇到问题。所有的方法都给了我，我可以实现；因此，我无法删除其中任何一个...

数量:4564 --> 四千五百六十四

这是代码数字类

package numberstowords;

import java.util.*;

public class Numbers {

    //array containing single digits words numbers:0-9
    private final String[] SINGLE_DIGITS_WORDS;

    //array containing special words words eg:10-19
    private final String[] TEEN_DIGITS_WORDS;

    //array containing tens words numbers:20-90
    private final String[] TEN_DIGITS_WORDS;

    private int value,   //number to be converted to words
                one,     //number to store digits
                ten,     //number to store tens
                hundred, //number to store hundred
                thousand;//number to store thousand

    private String strOut;

    //conscructor: Initializing value and arrays
    public Numbers(int n)


    //getting single digit number
    private int getOnes()
    {
        one = value % 10;
        return one;
    }

    //getting tens numbers
    private int getTens()
    {
        ten = value % 100;
        ten /= 10;
        return ten;
    }

    //getting hundreds numbers
    private int getHundreds()
    {
        hundred = value % 1000;
        hundred /= 100;
        return hundred;
    }

    //getting thousands numbers
    private int getThousands()
    {
        thousand = value % 10000;
        thousand /= 1000;
        return thousand;
    }

    //converting and returning string of ones 
    private String digitsToString(int one)
    {
        return SINGLE_DIGITS_WORDS[one];        
    }

    //converting and returning strings of tens and teens
    private String tensAndOnesToString(int ten, int one)
    {
        if(ten == 1)//if number is a teen return, else return tens 
        { 
            return TEEN_DIGITS_WORDS[one];
        }
        return TEN_DIGITS_WORDS[ten-2];         
    }

    //converting and returning strings of hundreds
    private String hundredsToString(int hundred)
    {
        return digitsToString(hundred) + " hundred";
    }

    private String thousandsToString(int thousand)
    {
        return digitsToString(thousand) + " thousand";
    }

Answer 1

根据您的评论，问题是您获得 11-19 之间数字的 ones 输出。

查看您的 tensAndOnesToString() 方法，它检查是否 ten == 1，以识别 teens 数字。那么，为什么不在 if(d4 != 0) 行中进行类似的检查，

    if(d4 != 0 && d3 != 1) // CHANGED THIS LINE
    {
        if(strOut.equals(""))
            strOut = digitsToString(one);
        else
        {
            strOut = strOut +" "+ digitsToString(one);
        }
    }

现在，如果它 (d4) 不是 0，并且 十 (d3) 不是 1，它只会输出 one 数字。