使用Java字典将整数转换为单词

Question

我想在其中的等效单词中转换数字。我写下了代码，并为此目的使用了Java字典。我的代码对于三位数的数字效果很好。但是，如果数字超过3位数，它将无法产生输出。同样，如果一个位置是zro且十个位置是从十到十九，则它也不起作用。

我的代码

public class IntegerEnglish {
public static void main(String args[]){
    Scanner in=new Scanner(System.in);
    System.out.println("Enter the integer");
    int input_number=in.nextInt();
    int a[]=new int[3];//define array for  3 digit but it should depend upon countdigit. But I cannot specify countdigit here because it is written after this line.

    int countdigit=0,i=0;
    Dictionary numbers_converter=new Hashtable();//Represent ones position
    Dictionary number_place=new Hashtable();//Represent thousand,ten thousand,tem million position
    Dictionary number_2nd=new Hashtable();//Represent tens position
    Dictionary number_converter1=new Hashtable();//Represent position ten to nineteen 
    numbers_converter.put(1,"One");
    numbers_converter.put(2,"Two");
    numbers_converter.put(3,"Three");
    numbers_converter.put(4,"Four");
    numbers_converter.put(5,"Five");
    numbers_converter.put(6,"Six");
    numbers_converter.put(7,"Seven");
    numbers_converter.put(8,"Eight");
    numbers_converter.put(9,"Nine");
    number_converter1.put(10,"Ten");
    number_converter1.put(11,"Eleven");
    number_converter1.put(12,"Twelve");
    number_converter1.put(13,"Thirteen");
    number_converter1.put(14,"Fourteen ");
    number_converter1.put(15,"Fifteen");
    number_converter1.put(16,"Sixteen");
    number_place.put(3,"Hundred");
    number_place.put(4,"Thousand");
    number_place.put(7,"Million");
    number_place.put(11,"Billion");
    number_2nd.put(2,"Twenty");
    number_2nd.put(3,"Thirty");
    number_2nd.put(4,"Forty");
    number_2nd.put(5,"Fifty");
    number_2nd.put(6,"Sixty");
    number_2nd.put(7,"Seventy");
    number_2nd.put(8,"Eighty");
    number_2nd.put(9,"Ninty");
    while(input_number>0){
            a[i] = input_number % 10;
            i++;
            input_number = input_number / 10;
            countdigit = countdigit + 1;//Counter that calculate how many digit are there in this number.


          if(countdigit==3||countdigit==4||countdigit==7||countdigit==11) {
              System.out.print(numbers_converter.get(a[2]));
            System.out.print(number_place.get(countdigit));//Statement for thousand,ten thousand ....position
        }
    }

        System.out.print(number_2nd.get(a[1]));//Like hard code only work when number is 3 digit.

    System.out.print(numbers_converter.get(a[0]));//Need some counter which used to change the cell number depend upon number of digit

}
}

输出：输入整数

123 一百二十三

到目前为止，我看到了这里提供的各种示例。没有人使用Java词典。那么，我该如何继续使我的代码对多达十亿个数字有用？

Solution link