CheckingAccount.java.html

  1  /**
  2     A checking account has a limited number of free deposits and withdrawals.
  3  */
  4  public class CheckingAccount extends BankAccount
  5  {
  6     private int withdrawals;
  7  
  8     /**
  9        Constructs a checking account with a zero balance.
 10     */
 11     public CheckingAccount()
 12     {
 13        withdrawals = 0;
 14     }
 15  
 16     public void withdraw(double amount)
 17     {
 18        final int FREE_WITHDRAWALS = 3;
 19        final int WITHDRAWAL_FEE = 1;
 20        
 21        super.withdraw(amount);  
 22        withdrawals++;
 23        if (withdrawals > FREE_WITHDRAWALS)
 24        {
 25           super.withdraw(WITHDRAWAL_FEE);  
 26        }
 27     }
 28  
 29     public void monthEnd()
 30     {
 31        withdrawals = 0;
 32     }
 33  }
 34