Exiting a swing application

Hello,
I have a swing application that behaves differently depending on if I go to file->exit or if I hit the X on the frame border.
Specifically, some threads keep running when I go to file->exit.
I would like for the app to behave as if they hit the X when they go to file->exit and have all threads stop.
The code I have for file->exit is ....
        exitItem.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent event) {
                frame.dispose();
        });Is there something else I could be doing here to make it kill everything?
Thanks,
~Eric

Hello,
I have a swing application that behaves differently
depending on if I go to file->exit or if I hit the X
on the frame border.
Specifically, some threads keep running when I go to
file->exit.
I would like for the app to behave as if they hit the
X when they go to file->exit and have all threads
stop.
The code I have for file->exit is ....
exitItem.addActionListener(new
ActionListener() {
public void actionPerformed(ActionEvent
event) {
frame.dispose();
});there something else I could be doing here to make it
kill everything?
System.exit(0);

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Hi,
I'm having trouble getting an image to open into my swing application and I cant figure out whats wrong. In response to selecting the "Open" button or menu item a JFileChooser opens up and i select an image but the image doesn't actually load. If anyone could help i'd really appreciate it.
import javax.swing.*;
import javax.swing.event.*;
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Your PhotoEditor class extends JPanel. In that class you override paintComponent(). But you never add the panel to the GUI, so that method is never invoked.
Personally I would have the PhotoEditor class extend JFrame. Then in the constructor you build all the components for the frame
a) build the menu
b) build the toolbar
Then I would create a PhotoPanel class that you extend and override the paintComponent(). Then you add this panel to the GUI as your main panel.
For a simple example of drawing a background image on a panel search the forum for my BackgroundImage example.

What are the requirements to run a Swing application?

I'm trying to send a simple swing application to a friend that has Mac OSX, but the buttons don't show up.
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Here is the code I'm using, it's an application that makes the user select a folder and stuff will happen to it.
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.logging.Level;
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import javax.swing.JLabel;
import javax.swing.JPanel;
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import javax.swing.UnsupportedLookAndFeelException;
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Exception handling for eventlistener inner classes in swing application

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I have an inner class thus...
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Thanks
Conrad

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I want to find if the user is inactive inside my swing application

i want to find if the user is inactive inside my swing application i.e he has not used the keyboard or mouse over a period of time

Hai,
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For mouse event i don't how to do the same process.
import java.awt.KeyEventDispatcher;
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rdRose

Runninng diffrent browsers form a swing application menu

Hi,
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Thank you
here is the command.
Runtime.getRuntime().exec("start http://www.microsoft.com");
Here is the code. very simple one
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import java.awt.event.*;
import javax.swing.JMenu;
import javax.swing.JMenuItem;
import javax.swing.JCheckBoxMenuItem;
import javax.swing.JRadioButtonMenuItem;
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import javax.swing.JMenuBar;
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import javax.swing.ImageIcon;
import javax.swing.JTextArea;
import javax.swing.JScrollPane;
import javax.swing.JFrame;
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JMenu menu, submenu;
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menuBar.add(menu);
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Runtime.getRuntime().exec("start http://www.microsoft.com");
protected String getClassName(Object o) {
String classString = o.getClass().getName();
int dotIndex = classString.lastIndexOf(".");
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window.setVisible(true);
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Sure. Tell us what your problem is. (No, "did not work out" is not a helpful comment.)

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Sample code
(in a Panel)
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Sample Code
in a JFrame's constructor
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Thanks for your sugession.
You realized me by showing the fact that there are no many classes
Keep suggesting like this.
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No.

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It is not the fault of NetBeans' GUI builder, JPanels are opaque by default, I mean whether you use Netbeans or not.Thank you!
I stand corrected (which is short for +"I jumped red-eyed on my feet and rushed to create an SSCCE to demonstrate that JPanels are... mmm... oh well, they are opaque by default... ;-[]"+)
NetBeans's definitely innocent then, and indeed using it would be an advantage (ctrl-click all JPanels in a form and edit the common opaque property to false) over manually coding
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Definitely. I bit a pair of knucles off when discovered it monthes after cumbersomely traversing the BasicL&F code...
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Edited by: jduprez on Feb 15, 2010 10:07 AM

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Hi Kuldeep Chitrakar
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Regards
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     at java.lang.Thread.run(Unknown Source)
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Thanks,

Hi.
I got a different problem. My Corba application works in JRE 1.6, but doesn't works in JRE 1.5.X. I got an unexpected error and my console shows:
getSubjectX500Principal NoSuchMethodError: java.lang NoSuchMethodError
#### Java Web Start Error:
#### null
Can you help me?

Java Swing application problem in Windows vista

When we execute the Swing application in windows vista environment.
The look and feel of the swing components are displayed improperly.
Do we need to put any specific look and feel for windows vista environment or any specific hardware configuration is required to setup windows vista environment.
Please give some inputs to solve the problem.
We have tried with the following sample code to run in windows vista.
* Vista.java
* Created on December 5, 2006, 5:39 PM
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/** Creates new form Vista */
public Vista() {
initComponents();
pack();
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
// <editor-fold defaultstate="collapsed" desc=" Generated Code ">//GEN-BEGIN:initComponents
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jButton1 = new javax.swing.JButton();
jToggleButton1 = new javax.swing.JToggleButton();
jPanel1 = new javax.swing.JPanel();
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* @param args the command line arguments
public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new Vista().setVisible(true);
// Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JButton jButton1;
private javax.swing.JCheckBox jCheckBox1;
private javax.swing.JPanel jPanel1;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTextArea jTextArea1;
private javax.swing.JTextField jTextField1;
private javax.swing.JToggleButton jToggleButton1;
// End of variables declaration//GEN-END:variables
}

When we execute the Swing application in windows
vista environment.
The look and feel of the swing components are
displayed improperly.Improperly means what? You must be aware that Vista's native L&F certainly isn't supported yet.

Need Help to update the labels in the GUI syncronously - Swing application

Hello everyone,
I need some help regarding a swing application. I am not able to syncronously update the counters and labels that display on my Swing GUI as the application runs in the background. But when the running of application is completed, then the labels on the GUI are getting updated, But I want update the labels and counters on the GUI syncronously as the code executes... below I am giving the format of the code I have written..............
public class SwingApp extends JFrame{
        // here i have declared the label and component varibles like...
                  private JTextField startTextField;
       private JComboBox maxComboBox;
       private JTextField logTextField;
       private JTextField searchTextField;
       private JLabel imagesDownloaded1;
       private JLabel imagesDownloaded2;
       private JLabel imagesDidnotDownload1;
       private JLabel imagesDidnotDownload2;
                  private JButton startButton;
//now in the constructer.............
public Swing(){
//I used gridbaglayout and wrote the code for the GUI to appear....
startButton = new JButton("Start Downloading");
    startButton.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        try{
             actionSearch();   //actionSearch will contain all the code and the function calls of my application...........
        }catch(Exception e1){
             System.out.println(e1);
    constraints = new GridBagConstraints();
    constraints.gridwidth = GridBagConstraints.REMAINDER;
    constraints.insets = new Insets(5, 5, 5, 5);
    layout.setConstraints(startButton, constraints);
    searchPanel.add(startButton);
//update is a function which initiates a thread which updates the GUI. this function will be called to pass the required variables in the application
public void update(final int count_hits, final int counter_image_download1, final int didnot_download1) throws Exception{
     Thread thread = new Thread(new Runnable() {
         public void run() {
              System.out.println("entered into thread");
              System.out.println("the variable that has to be set is " + count_hits);
              server_hits_count.repaint(count_hits);
              server_hits_count.setText( " "+ Integer.toString(count_hits));
              imagesDownloaded2.setText(" " + Integer.toString(counter_image_download1));
              imagesDidnotDownload2.setText(" " + Integer.toString(didnot_download1));
              repaint();
     //this.update(count_hits);
     thread.start();
//Now in main............................
public static void main(String[] args){
Swing s = new Swing();
s.setVisible(true);
}//end of main
}//end of class SwingAbove I have given the skeleton code of my application........ Please tell me how to update the GUI syncronously...
Please its a bit urgent...............
Thank you very much in advance
chaitanya

First off, note that this question should have been posted in the Swing section.
GUI events run in a separate thread (the AWT / Event Dispatch Thread) than your program.
You should be invoking AWT/Swing events via SwingUtilities.invokeLater().
If for whatever reason you want to have the program thread wait for the event to process
you can use invokeAndWait().
http://java.sun.com/javase/6/docs/api/javax/swing/SwingUtilities.html

Exiting a swing application

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