      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 amountDue = PENNIES_PER_DOLLAR * billValue - itemPrice;

     23        int dollarCoins = amountDue / PENNIES_PER_DOLLAR;

     24        amountDue = amountDue % PENNIES_PER_DOLLAR;

     25        int quarters = amountDue / 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  }