Number To Words by Himanshu

import java.util.Scanner;
class NumbersToWords
{
    String teens[];
    String ones[];
    String tens[];
    String hundreds[];
    NumbersToWords()
    {
        teens=new String[]{""," ELEVEN ","  TWELVE ","THIRTEEN "," FOURTEEN "," FIFTEEN "," SIXTEEN "," SEVENTEEN "," EIGHTEEN "," NINETEEN "};
        ones=new String[]{"","ONE ","TWO ","THREE ","FOUR "," FIVE ","SIX ","SEVEN ","EIGHT ","NINE ",};
        tens=new String[]{""," TEN "," TWENTY "," THIRTY "," FORTY "," FIFTY "," SIXTY "," SEVENTY "," EIGHTY "," NININETY "};
        hundreds=new String[]{"","ONE HUNDRED AND ","TWO HUNDRED AND ","THREE HUNDRED AND ","FOUR HUNDRED AND ","FIVE HUNDRED AND ","SIX HUNDRED AND ","SEVEN HUNDRED AND ","EIGHT HUNDRED AND ","NINE HUNDRED AND ",};
    }
    int counter(int num)
    {
        int ctr=0;
        while(num>0)
        {
            num=num/10;
            ctr++;
        }
        return ctr;
    }
    void numToWords(int num)
    {
        while(num>0)
        {
        String numstr=num+"";
        int ctr=counter(num);



            if(ctr==1)
            {
                // OLD CODE:
                //System.out.print(ones[java.lang.Character.getNumericValue(numstr.charAt(0))]);
                // NEW CODE:
                System.out.print(ones[numstr.charAt(0) - '0']);
                break;
            }
            else if (ctr==2)
            {
                if(numstr.charAt(0)=='1')
                {

                    // OLD CODE:
                    //System.out.print(teens[java.lang.Character.getNumericValue(numstr.charAt(1))]);
                    // NEW CODE:
                    System.out.print(teens[numstr.charAt(1) - '0']);
                    break;
                }
                else
                {
                    // OLD CODE:
                    //System.out.print(tens[java.lang.Character.getNumericValue(numstr.charAt(0))]);
                    // NEW CODE
                    System.out.print(tens[numstr.charAt(0) - '0']);
                }
            }
            else if(ctr==3)
            {
                // OLD CODE:
                // System.out.print(hundreds[java.lang.Character.getNumericValue(numstr.charAt(0))]);
                // NEW CODE
                System.out.print(hundreds[numstr.charAt(0) - '0']);
            }

       num=num%(int)Math.pow(10,ctr-1);

        }
    }
    public static void main(String args[])
    {
        Scanner sc=new Scanner(System.in);
        NumbersToWords obj=new NumbersToWords();
        System.out.println("Enter the number");
        int num=sc.nextInt();
        obj.numToWords(num);
    }
}