creditcard.java

java的一点小东东啦

public class CreditCard {
  
  // Instance variables;
  private String number;
  private String name;
  private String bank;
  protected double balance;
  private int limit;
  
  // Constructor
  CreditCard(String no, String nm, String bk, double bal, int lim) {
    number = no;
    name = nm;
    bank = bk;
    balance = bal;
    limit = lim;
  }
  
  // Accessor methods
  public String getNumber()	{ return number; }
  public String getName()	{ return name; }
  public String getBank()	{ return bank; }
  public double getBalance() 	{ return balance; }
  public int getLimit() 	{ return limit; }
  
  // Action methods
  public boolean chargeIt(double price) { 	// Make a charge
    if (price + balance > (double) limit)
      return false;	// Not enough money left to charge it
    balance += price;
    return true;	// The charge is accepted
  }
  public void makePayment(double payment) {	// Make a payment
    balance -= payment;
  }
  public static void printCard(CreditCard c) {	// Print a card's info
    System.out.println("Number = " + c.getNumber());
    System.out.println("Name = " + c.getName());
    System.out.println("Bank = " + c.getBank());
    System.out.println("Balance = " + c.getBalance());
    System.out.println("Limit = " + c.getLimit());
  }
}