public class Test {
  public static void main(String[] args) {
    CreditCard wallet[] = new CreditCard[10];
    wallet[0] = new CreditCard("5391 0375 9387 5309", 
			  "John Bowman", "Calfornia Savings", 0.0, 2500);
    wallet[1] = new CreditCard("3485 0399 3395 1954", 
			  "John Bowman", "Calfornia Federal", 0.0, 3500);
    wallet[2] = new CreditCard("6011 4902 3294 2994", 
			  "John Bowman", "Calfornia Finance", 0.0, 5000);
    for (int i=1; i<=16; i++) {
      wallet[0].chargeIt((double)i);
      wallet[1].chargeIt(2.0*i); 	// implicit cast
      wallet[2].chargeIt((double)3*i);	// explicit cast
    }
    System.out.println("Card payments:");
    for (int i=0; i<3; i++) {
      CreditCard.printCard(wallet[i]);
      while (wallet[i].getBalance() > 100.0) {
	wallet[i].makePayment(100.0);
	System.out.println("New balance = " + wallet[i].getBalance());
      }
      System.out.println();
    }
  }
}