CECS 475                                                     LAB ASSIGNMENT  #8
Assigned date: 11/28
Due date: 12/5
20 points

Create a event-driven GUI application to process a bank account withdraw and deposit.

Implement the event listener with two different approaches:

• Implement it in the panel itself.
• Implement it in a seperate class.
• Implement it in an inner class with the panel (peer programming)
• Implement it in an anomynous inner class (peer programming)

  Partial coding for the UI bank account application

  import javax.swing.JFrame;

  /**
  A GUI for manipulating a bank account.
  */
  public class BankAccountViewer
  {
  private static final double INITIAL_BALANCE = 1000;

  public static void main(String[] args)
  {
  BankAccount account = new BankAccount(INITIAL_BALANCE);

  // construct the frame
  JFrame frame = new BankAccountFrame(account);
  frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  frame.setVisible(true);
  }
  }
  

  ___________________

  /**
  A bank account has a balance that can be changed by
  deposits and withdrawals.
  */
  public class BankAccount implements Comparable<BankAccount>
  {
  private double balance;

  /**
  Constructs a bank account with a zero balance.
  */
  public BankAccount()
  {
  balance = 0;
  }

  /**
  Constructs a bank account with a given balance.
  @param initialBalance the initial balance
  */
  public BankAccount(double initialBalance)
  {
  balance = initialBalance;
  }

  /**
  Deposits money into the bank account.
  @param amount the amount to deposit
  */
  public void deposit(double amount)
  {
  double newBalance = balance + amount;
  balance = newBalance;
  }

  /**
  Withdraws money from the bank account.
  @param amount the amount to withdraw
  */
  public void withdraw(double amount)
  {
  double newBalance = balance - amount;
  balance = newBalance;
  }

  /**
  Gets the current balance of the bank account.
  @return the current balance
  */
  public double getBalance()
  {
  return balance;
  }

  public int compareTo(BankAccount other)
  {
  double d = balance - other.balance;
  if (d < 0)
  return -1;
  if (d > 0)
  return 1;
  return 0;
  }
  }

Grading

• A copy of the source code.
• Demonstrate the results to the instructor