/**
   Simulate a bank account.
*/
public class BankAccount
{
   /**
      Create a new bank account with an initial deposit.
   */
   public BankAccount (String accountName) 
   { 
      name = accountName; 
      number = ++lastNumber;
      balance = 0;
   }

   /**
      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; }
   public int getNumber() { return number; }
   public int getLastNumber() { return lastNumber; }
   public String getName() { return name; }
   public String toString() 
   { return 
       "BankAccount" +
       "[number=" + number +
       ",name=" + name +
       ",balance=" + balance +
       "]";
   }

   private int number; // account number starting from 0
   private String name; // account holder's name(s)
   private int balance; // amount of money in the bank in Ushs
   private static int lastNumber = -1;
}