Closing a JFrame when you click on another JFrame...

Question

Hi,
I was hoping someone could help me.
I have a main application, which assigned to one of my buttons is a new instance of another class which loads up another GUI. What i wish to do is when the user pushes this button and loads up the new GUI, i want this new GUI to close automatically when the user clicks back on to the main application GUI.
Is this possible???? I have tried searching for a solution, however I have hod no luck :(
If anyone has any suggestions please let me know, thank you!
Claire
x

Answer 1

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Test2 extends JFrame {
  public Test2() {
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Container content = getContentPane();
    JButton jb = new JButton("New Frame");
    content.add(jb, BorderLayout.SOUTH);
    jb.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent ae) { showFrame(); }
    setSize(300,300);
    setVisible(true);
  private void showFrame() {
    JFrame jf = new JFrame("I am new frame");
    jf.setBounds(300,300,200,200);
    jf.getContentPane().add(new JButton("I am button"));
    jf.setVisible(true);
    jf.addWindowListener(new WindowAdapter() {
      public void windowDeactivated(WindowEvent we) { ((JFrame)we.getSource()).setVisible(false); }
  public static void main(String[] args) { new Test2(); }
}