1  import java.util.Scanner;

  2  

  3  /**

  4     This program simulates a vending machine that gives change.

  5  */

  6  public class VendingMachine

  7  {

  8     public static void main(String[] args)

  9     {

 10        Scanner in = new Scanner(System.in);

 11  

 12        final int PENNIES_PER_DOLLAR = 100;

 13        final int PENNIES_PER_QUARTER = 25;

 14  

 15        System.out.print("Enter bill value (1 = $1 bill, 5 = $5 bill, etc.): ");

 16        int billValue = in.nextInt();

 17        System.out.print("Enter item price in pennies: ");

 18        int itemPrice = in.nextInt();

 19  

 20        // Compute change due

 21  

 22        int changeDue = PENNIES_PER_DOLLAR * billValue - itemPrice;

 23        int dollarCoins = changeDue / PENNIES_PER_DOLLAR;

 24        changeDue = changeDue % PENNIES_PER_DOLLAR;

 25        int quarters = changeDue / PENNIES_PER_QUARTER;

 26  

 27        // Print change due

 28        

 29        System.out.printf("Dollar coins: %6d", dollarCoins);

 30        System.out.println();

 31        System.out.printf("Quarters:     %6d", quarters);

 32        System.out.println();

 33     }

 34  }