Use the following tester class to figure out how to make your own CashRegister.java class file.

CashRegisterTest.java

/**
   A class to test the CashRegister class.
*/
public class CashRegisterTester
{
   public static void main(String[] args)
   {
      CashRegister register = new CashRegister();
      register.recordPurchase(29.50);
      register.recordPurchase(9.25);
      register.enterPayment(50);
      double change = register.giveChange();
      System.out.println(change);      
      System.out.println("Expected: 11.25");          
   }
}