How do i make the old frame dissapear when i click a button for a new frame

Question

I have a program were you have 2 buttons in a frame. When you click on a choice a new frame pops up with another choice. I wanted to know how can i make the old frame dissapear after the user makes the choice and the new frame has come up?
Thank you,
Dan

Answer 1

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Frame extends JFrame implements ActionListener
     private JButton Three;
     private JButton Four;
     private JButton One;
     private JButton Two;
     static int num = 0;
public Frame()
     JPanel p1 = new JPanel();
getContentPane().add(p1);
     if(num == 0)
     p1.add(One = new JButton("Admin"));
     One.addActionListener     (this );
     p1.add(Two = new JButton("Buy"));
     Two.addActionListener     (this );
if(num == 1)
     this.dispose();
     p1.add(Three = new JButton("Password"));
     Three.addActionListener (this);
if(num == 2)
     p1.add(Four = new JButton("Product-ID"));
     Four.addActionListener(this);
public void actionPerformed(ActionEvent e)
     if (e.getSource() == One)
          num = 1;
          Frame g = new Frame();
          g.pack();
          g.setVisible(true);
if (e.getSource() == Two )
               num = 2;
               Frame h = new Frame();
          h.pack();
          h.setVisible(true);
     if(e.getSource() == Three )
          System.out.println("Password");
     if(e.getSource() == Four)
               System.out.println("Product-ID");
public static void main(String[] args)
     Frame frame = new Frame();
frame.pack();
frame.setVisible(true);