FigureInWord

import java.util.Scanner;

public class FigureInWord {

	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		FigureInWord fiw = new FigureInWord();
		System.out.print("Enter a number to convert to words (or 'done' to quit):");
		String input = in.nextLine();
		while (!input.equals("done")) {
			try {
	    		int inpt =Integer.parseInt(input);
	    		System.out.print("The value is :" + convert(inpt));
	    		System.out.println();
	    		System.out.print("Enter a number to convert to words (or 'done' to quit):");
	    		input = in.nextLine();
	    		
//	    		System.out.print("The value is :" + convert(inpt));
			} catch (Exception e) {
				System.out.println("You entered a wrong value.");
			}
		}
		System.out.println("Thank you for using our service.");
	}
	//Array Declarations for public
	public static String[] zero_to_nineteen = {"Zero","One","Two","Three","Four","Five","Six","Seven","Eight","Nine","Ten","Eleven","Twelve","Thirteen","Fourteen","Fifteen","Sixteen","Seventeen","Eighteen","Nineteen"};
	public static String[] tens = {"","","Twenty","Thirty","Forty","Fifty","Sixty","Seventy","Eighty","Ninety"};
	//Morse code. Program kernel
	public static String convert(int i) {
		String sign = "Negative ";
		if (i<0) {
			i *=-1;
			if( i < 20)  return sign + zero_to_nineteen[i];
			if( i < 100) return sign + tens[i/10] + ((i % 10 > 0)? " " + convert(i % 10):"");
			if( i < 1000) return sign + zero_to_nineteen[i/100] + " Hundred" + ((i % 100 > 0)?" and " + convert(i % 100):"");
			if( i < 1000000) return sign + convert(i / 1000) + " Thousand " + ((i % 1000 > 0)? " " + convert(i % 1000):"") ;
	        if(i<1000000000) return sign + convert(i / 1000000) + " Million " + ((i % 1000000 > 0)? " " + convert(i % 1000000):"") ;
	        return (i / 1000000000) + " Billion " + ((i % 1000000000 > 0)? " " + convert(i % 1000000000):"") ;
		} else {
			if( i < 20)  return zero_to_nineteen[i];
			if( i < 100) return tens[i/10] + ((i % 10 > 0)? " " + convert(i % 10):"");
			if( i < 1000) return zero_to_nineteen[i/100] + " Hundred" + ((i % 100 > 0)?" and " + convert(i % 100):"");
			if( i < 1000000) return convert(i / 1000) + " Thousand " + ((i % 1000 > 0)? " " + convert(i % 1000):"") ;
	        if(i<1000000000) return convert(i / 1000000) + " Million " + ((i % 1000000 > 0)? " " + convert(i % 1000000):"") ;
	        return (i / 1000000000) + " Billion " + ((i % 1000000000 > 0)? " " + convert(i % 1000000000):"") ;
		}
	}	
}