Hello,

Everytime I press the continue and back button the previous frame never closes. If I select the continue button, Im taken to the next frame but the previous frame is still there How can I just have the active frame displayed at all times.

Below is the code.

package jframe;

import java.awt.Color;

import java.awt.EventQueue;

import java.awt.Font;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.WindowConstants;

import javax.swing.border.EmptyBorder;

import javax.swing.JComboBox;

import javax.swing.DefaultComboBoxModel;

//create class and extend with JFrame

public class jrrame1 extends JFrame

{

//declare variable

private JPanel contentPane;

/**

* Launch the application.

*/

//main method

public static void main(String[] args)

{

/* It posts an event (Runnable)at the end of Swings event list and is

processed after all other GUI events are processed.*/

EventQueue.invokeLater(new Runnable()

{

public void run()

{

//try - catch block

try

{

//Create object of OldWindow

jrrame1 frame = new jrrame1();

//set frame visible true

frame.setVisible(true);

}

catch (Exception e)

{

e.printStackTrace();

}

}

});

}

/**

* Create the frame.

*/

public jrrame1()//constructor

{

//set default close operation

setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

//set bounds of the frame

setBounds(100, 100, 450, 300);

//create object of JPanel

contentPane = new JPanel();

//set border

contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));

//set ContentPane

setContentPane(contentPane);

//set null

contentPane.setLayout(null);

//create object of JButton and set label on it

JButton btnNewFrame = new JButton("Continue");

//add actionListener

btnNewFrame.addActionListener(new ActionListener()

{

public void actionPerformed(ActionEvent arg0)

{

//call the object of NewWindow and set visible true

jframe2 frame = new jframe2();

setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.setVisible(true);

//jrrame.setVisible(true);

//set default close operation

}

});

//set font of the Button

btnNewFrame.setFont(new Font("Microsoft YaHei UI", Font.BOLD, 12));

//set bounds of the Button

btnNewFrame.setBounds(143, 195, 116, 25);

//add Button into contentPane

contentPane.add(btnNewFrame);

JComboBox comboBox = new JComboBox();

comboBox.setModel(new DefaultComboBoxModel(new String[] {"Test1", "Test2"}));

comboBox.setBounds(93, 106, 248, 27);

contentPane.add(comboBox);

comboBox.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent event) {

JComboBox DeviceCB = (JComboBox) event.getSource();

Object selectDevice = DeviceCB.getSelectedItem();

if(selectDevice.toString().equals("Test 1"))

{

}

}

});

}

}

--------------

Other class

package jframe;

import java.awt.Color;

import java.awt.EventQueue;

import java.awt.Font;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import jframe.jrrame1;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.WindowConstants;

import javax.swing.border.EmptyBorder;

import javax.swing.JComboBox;

import javax.swing.DefaultComboBoxModel;

//create class and extend with JFrame

public class jframe2 extends jrrame1

{

//declare variable

private JPanel contentPane;

/**

* Launch the application.

*/

//main method

/**

* Create the frame.

*/

public jframe2() //constructor

{

//set default close operation

setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

//set bounds of the frame

setBounds(100, 100, 450, 300);

//create object of JPanel

contentPane = new JPanel();

//set border

contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));

//set ContentPane

setContentPane(contentPane);

//set null

contentPane.setLayout(null);

//create object of JButton and set label on it

JButton btnNewFrame = new JButton("Back");

//add actionListener

btnNewFrame.addActionListener(new ActionListener()

{

public void actionPerformed(ActionEvent arg0)

{

//call the object of NewWindow and set visible true

jrrame1 frame = new jrrame1();

setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.setVisible(true);

//jrrame.setVisible(true);

//set default close operation

}

});

//set font of the Button

btnNewFrame.setFont(new Font("Microsoft YaHei UI", Font.BOLD, 12));

//set bounds of the Button

btnNewFrame.setBounds(143, 195, 116, 25);

//add Button into contentPane

contentPane.add(btnNewFrame);

JComboBox comboBox1 = new JComboBox();

comboBox1.setModel(new DefaultComboBoxModel(new String[] {"Test3", "Test4"}));

comboBox1.setBounds(77, 61, 230, 27);

contentPane.add(comboBox1);

}

}

Thanks