1  /**

  2     A class to test the CashRegister class.

  3  */

  4  public class CashRegisterTester

  5  {

  6     public static void main(String[] args)

  7     {

  8        final Coin DOLLAR = new Coin(1.0, "Dollar");

  9        final Coin QUARTER = new Coin(0.25, "Quarter");

 10  

 11        CashRegister register = new CashRegister();

 12  

 13        register.recordPurchase(1.95);

 14        register.recordPurchase(1.40);

 15        register.receivePayment(3, DOLLAR);

 16        register.receivePayment(2, QUARTER);

 17  

 18        double change = register.giveChange();

 19  

 20        System.out.println(change);      

 21        System.out.println("Expected: 0.15");          

 22     }

 23  }