/* Lesley Hogan
 * July 14th 2003
 * GetChange.java
 */

package net.bunnie.dos;

import net.bunnie.*;

public class GetChange {
	// input number in xx.xx format, get change
	// for those mcdonalds workers out there

    public static void main (String[] args) {

        // TerminalIO
        double change = 0.0;
        KeyboardReader r = new KeyboardReader();
        System.out.print("Please enter the amount of money\nto be converted in dollars:\n$");
        change = r.readDouble();
        System.out.print("\n\n");

        // convert to cents, output arrays
        int changeInt = (int) (change * 100);
        int[] moneyArray = {2000, 1000, 500, 100, 25, 10, 5, 1};
        int[] output = new int[8];
        String[] outputNames = {"$20 bills", "$10 bills", "$5 bills", "$1 bills", "Quarters", "Dimes", "Nickels", "Pennies"};

        /* format number...
         * if number is .80 (80 cents)
         * then it will only print "$0.8" without this
         * this makes it print "$0.80"
        */

        String centsNowDollars;
		String centsInDollars;
		String totalCentsLengthString;
		String totalCentsString;
		int centsGivenLength;
		int centsGiven;
		int totalCents;
		int centsOnlyDollars;
		int totalCentsLength;

		centsInDollars = "" + changeInt;
		centsGivenLength = centsInDollars.length();
		switch (centsGivenLength) {
		case 1:
			centsNowDollars = "0.0" + changeInt;
			break;
		case 2:
			centsNowDollars = "0." + changeInt;
			break;
		default:
			centsOnlyDollars = (int) (changeInt / 100);
			totalCents = changeInt % 100;
			totalCentsLengthString = "" + totalCents;
			totalCentsLength = totalCentsLengthString.length();
			if (totalCentsLength == 1) {
				totalCentsString = "0" + totalCents;
			}
			else {
				totalCentsString = "" + totalCents;
			}
			centsNowDollars = "" + centsOnlyDollars + "." + totalCentsString;
			break;
		}

		// print out properly formatted number

        System.out.print("The change for $" + centsNowDollars + " is...\n\n");

        // do loop to go through arrays
        int i = 0;
        do {
            output[i] = changeInt / moneyArray[i];
            changeInt = changeInt % moneyArray[i];
            System.out.println(output[i] + " " + outputNames[i]);
			i++;
		}
		while (i < moneyArray.length);
		System.out.println();
    }
}