Converting Words to Numbers in Java

Question

I have seen a lot of algorithms in which you give them a number say \"123\" and it converts it to One hundred twenty three. But i can\'t seem to find something that does the

Answer 1

Best and simple way to print 0 to 99999 numbers to words conversion program

Note: You can also extend more numbers greater than 99999 using same logic.

import java.util.Scanner;
class NumberToWord
{  
    final private static String[]units = {"Zero", "One","Two","Three","Four","Five","Six","Seven","Eight","Nine","Ten",
    "Eleven","Twelve","Thirteen","Fourteen","Fifteen","Sixteen","Seventeen","Eighteen","Nineteen"};

    final private static String[]tens = {"","","Twenty ","Thirty ","Forty ","Fifty ","Sixty ","Seventy ","Eighty ","Ninety "};
    public static String convert(int number)
    {
            if(number<0)
            {
                throw new ArithmeticException("Number should be positive.");            
            }
            else if(number<20)
            {
                return (units[number]);
            }   
            else if(number<100)
            {
                return tens[number/10] + ((number % 10 > 0)? convert(number % 10):"");
            }           
            else if(number<1000)
            {
                return units[number/100] + " hundred" + ((number%100>0)? " and " + convert(number%100):"");
            }           
            else if(number<20000)
            {
                return  units[number/1000] + " Thousand " + ((number%1000>0)? convert(number%1000):"");
            }           
                return tens[number/10000] + ((number%10000>0)? convert(number%10000):"Thousand" );      
    }   

    public static void main(String[] args) 
    {
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter a number between 0 to 99999: ");
        int num = sc.nextInt();
        System.out.println(convert(num));   
    }    
}

Thank you for reading!!