Write a programme in java to accept a number (0 -999) and print it in words.

This programme can wite in two way. in the first way is for begineers, simple convert the digits into words and print it. The Second way is little more complex, here we convert the numbers into words properly. and according to me This is the correct way for this program.

First way of Programming

import java.util.*;
public class NumberToWords
{
    public static void main(String []args)
    {
        String []nos={"Zero","One","Two","Three","Four","Five","Six","Seven","Eight","Nine"};
        Scanner sc=new Scanner(System.in);
        System.out.print("Enter The Number : ");
        int no=sc.nextInt();
        int r;
        String res="";
        while(no>0)
        {
            r=no%10;
            res = nos[r] + " " + res;
            no /= 10;
        }
        System.out.print("\n " + res);
    }
}

Output

Enter The Number : 756

Seven Five Six

Second way of Programming

import java.util.*;
public class NumberToWords
{
    public static void main(String []args)
    {
        String []nos={"Zero","One","Two","Three","Four","Five","Six","Seven","Eight","Nine","Ten", "Eleven", "Twelve", "Thirteen", "Fourteen", "Fifteen", "Sixteen", "Seventeen", "Eighteen", "Nineteen", "Twenty", "Thirty", "Fourty", "Fifty", "Sixty", "Seventy", "Eighty", "Ninety"};
        Scanner sc=new Scanner(System.in);
        System.out.print("Enter The Number : ");
        String no=sc.next();
        String res="";
        int no1=0,no2=0,no3=0;
        if(no.length()==3)
        {
            no1=Integer.parseInt(no.substring(0,1));
            no2=Integer.parseInt(no.substring(1,2));
            no3=Integer.parseInt(no.substring(2,3));
            res = nos[no1] + " Hundred " + nos[18+no2] + " ";
            if(no3>0)
                res += nos[no3];
            res += " Only";
        }
        
        System.out.print("\n  " + res);
    }
}

Output

Enter The Number : 345
Three Hundred Fourty Five Only

Enter The Number : 670
Six Hundred Seventy  Only