Money to Words

[javanewbie]

Good day to everyone.

Right here, I do have here a program that allows numbers to convert them into words.

import java.io.*;

class MoneyConversion {
	
	public static void main(String[] args) {
    	EnglishDecimalFormat f = new EnglishDecimalFormat();
    	System.out.println("*** " + f.convert(0));
    	System.out.println("*** " + f.convert(1));
    	System.out.println("*** " + f.convert(16));
    	System.out.println("*** " + f.convert(100));
    	System.out.println("*** " + f.convert(118));
    	System.out.println("*** " + f.convert(200));
    	System.out.println("*** " + f.convert(219));
    	System.out.println("*** " + f.convert(800));
    	System.out.println("*** " + f.convert(8010));
    	System.out.println("*** " + f.convert(1316));
    	System.out.println("*** " + f.convert(1000000));
    	System.out.println("*** " + f.convert(2000000));
    	System.out.println("*** " + f.convert(3000200));
    	System.out.println("*** " + f.convert(700000));
    	System.out.println("*** " + f.convert(9000000));
    	System.out.println("*** " + f.convert(123456789));
    	System.out.println("*** " + f.convert(-45));
	}
  
	private static final String[] majorNames = {
    "",
    " thousand",
    " million",
    " billion",
    " trillion",
    " quadrillion",
    " quintillion"
    };

  	private static final String[] tensNames = {
    "",
    " ten",
    " twenty",
    " thirty",
    " fourty",
    " fifty",
    " sixty",
    " seventy",
    " eighty",
    " ninety"
    };

  	private static final String[] numNames = {
    "",
    " one",
    " two",
    " three",
    " four",
    " five",
    " six",
    " seven",
    " eight",
    " nine",
    " ten",
    " eleven",
    " twelve",
    " thirteen",
    " fourteen",
    " fifteen",
    " sixteen",
    " seventeen",
    " eighteen",
    " nineteen"
    };

 	private String convertLessThanOneThousand(int number) {
    String soFar;

    	if (number % 100 < 20){
        	soFar = numNames[number % 100];
        	number /= 100;
       	}
    	else {
        	soFar = numNames[number % 10];
        	number /= 10;

        	soFar = tensNames[number % 10] + soFar;
        	number /= 10;
       	}
    
    	if (number == 0) return soFar;
    	return numNames[number] + " hundred" + soFar;
	}

	public String convert(int number) {
    /* special case */
    	if (number == 0) { return "zero"; }

    	String prefix = "";

	    if (number < 0) {
    	    number = -number;
        	prefix = "negative";
      	}

    	String soFar = "";
    	int place = 0;

    	do {
      		int n = number % 1000;
      	
      		if (n != 0){
         		String s = convertLessThanOneThousand(n);
         		soFar = s + majorNames[place] + soFar;
        	}
      		place++;
      		number /= 1000;
      	
      	} while (number > 0);

    	return (prefix + soFar).trim();
	}
}



    /*
    *** zero
    *** one
    *** sixteen
    *** one hundred
    *** one hundred eighteen
    *** two hundred
    *** two hundred nineteen
    *** eight hundred
    *** eight hundred one
    *** one thousand three hundred sixteen
    *** one million
    *** two million
    *** three million two hundred
    *** seven hundred thousand
    *** nine million
    *** one hundred twenty three million four hundred 
    **                fifty six thousand seven hundred eighty nine
    *** negative fourty five
    */

I'm still finding a way where I can add up decimal values.

Example:

123.45 = one hundred twenty three and forty five cents.

Anyone knows how?


Thanks in advance.

[Nicholas Jordan]

if( ( number - 10 ) > 0 ){StringBuffer.append();//}
if( ( number - 100 ) > 0 ){StringBuffer.append();//}
if( ( number - 1000 ) > 0 ){StringBuffer.append();//}

modulo operator does the opposite of what you want to do, use StringBuffer to build up what is written to System.out.

Just a short, once through. Other places depend on this being worked first.

[Norm]

Convert the number to string. Then use the position of each character in the string to determine what value it is. Sort of like you do when you look at a number.
Split it at the decimal point
For example 123.45 1 in hundreds position, 2 in 10s and 3 in unit
then for the fraction. it has 2 positions, so 4 10s and 5 in unit