Making Change

/**
 * Jessica Wong
 * Period 4
 * October 3, 2017
 *
 * Directions: When you pay for something with cash, the cashier gives you change
 * in the most efficient way possible (usually). For example, if you get $1.32 change,
 * the cashier will give you 1 dollar, 1 quarter, 1 nickel and 2 pennies (not 132 pennies).
 *
 *Write a program to determine the most efficient denominations of change when one
 * pays $20 for a product worth
 *  1) 17.99
 *  2) 12.53
 *  3) 9.02
 *
 * Your program should make use of $20 as a constant and Print out (for each of the above):
 *  If you pay $20 for a product worth $17.99, you will receive as change:
 *  0 ten dollar bills, 0 five dollar bills, 2 one dollar bills, 0 quarters, 0 dimes, 0 nickels, and 1 pennies.
 *
 */

public class Main {

    public static void main(String[] args) {

        double cost = 17.99;
        double change = 20 - cost;
        int changeInt = (int)(change*100);
        int tens = changeInt/1000;
        changeInt %= 1000;
        int fives = changeInt/500;
        changeInt %= 500;
        int ones = changeInt/100;
        changeInt %= 100;
        int quarters = changeInt/25;
        changeInt %= 25;
        int dimes = changeInt/10;
        changeInt %= 10;
        int nickels = changeInt/5;
        changeInt %= 5;
        int pennies = changeInt;

        System.out.println("If you pay $20 for a product worth" + " $" + cost + " you will receive as change:\n"+ tens + " ten dollar bills, "+fives+
        " five dollar bills, "+ones+ " one dollar bills, "+quarters+" quarters, "+ dimes+" dimes, "+nickels+" nickels, and "+pennies+ " pennies.");

        double cost2 = 12.53;
        double change2 = 20 - cost2;
        int changeInt2 = (int)(change2*100);
        int tens2 = changeInt2/1000;
        changeInt2 %= 1000;
        int fives2 = changeInt2/500;
        changeInt2 %= 500;
        int ones2 = changeInt2/100;
        changeInt2 %= 100;
        int quarters2 = changeInt2/25;
        changeInt2 %= 25;
        int dimes2 = changeInt2/10;
        changeInt2 %= 10;
        int nickels2 = changeInt2/5;
        changeInt2 %= 5;
        int pennies2 = changeInt2;

        System.out.println("If you pay $20 for a product worth" + " $" + cost2 + " you will receive as change:\n"+ tens2 + " ten dollar bills, "+fives2+
        " five dollar bills, "+ones2+ " one dollar bills, "+quarters2+" quarters, "+ dimes2+" dimes, "+nickels2+" nickels, and "+pennies2+ " pennies.");

        double cost3 = 9.02;
        double change3 = 20 - cost3;
        int changeInt3 = (int)(change3*100);
        int tens3 = changeInt3/1000;
        changeInt3 %= 1000;
        int fives3 = changeInt3/500;
        changeInt3 %= 500;
        int ones3 = changeInt3/100;
        changeInt3 %= 100;
        int quarters3 = changeInt3/25;
        changeInt3 %= 25;
        int dimes3 = changeInt3/10;
        changeInt3 %= 10;
        int nickels3 = changeInt3/5;
        changeInt3 %= 5;
        int pennies3 = changeInt3;

        System.out.println("If you pay $20 for a product worth" + " $" + cost3 + " you will receive as change:\n"+ tens3 + " ten dollar bills, "+fives3+
        " five dollar bills, "+ones3+ " one dollar bills, "+quarters3+" quarters, "+ dimes3+" dimes, "+nickels3+" nickels, and "+pennies3+ " pennies.");

    }
}