/**
   Simulate a bank account.
   @author Greg Vogl
   last modified 2003-10-11
*/
public class BankAccount2
{
   /**
      Create a new bank account with an initial deposit.
   */
   public BankAccount2 (int amount) { deposit(amount); }

   /**
      Deposit a positive amount.
   */
   public boolean deposit (int amount) 
   { 
      if (amount <= 0)
         return false;
      balance += amount; 
      return true;
   }

   /**
      Withdraw a positive amount that is less than or equal to the balance.
   */
   public boolean withdraw (int amount) 
   { 
      if (amount <= 0 || amount > balance)
         return false;
      balance -= amount;
      return true;
   }

   public int getBalance() { return balance; }

   private int balance;
}