JFrame always closes despite of option chosen

[ooJavaoo]

I'm trying to write a window handler but for some reason, my JFrame always closes when user clicks the 'X' button, even if the user clicks 'No' or 'Cancel' in the confirmation box. Can anyone check the code for me please?

private class WindowHandler implements WindowListener
{
public void windowClosing(WindowEvent arg0)
{
if (JOptionPane.showConfirmDialog(null, "Are You Sure?", "Quitting",
JOptionPane.YES_NO_CANCEL_OPTION, JOptionPane.QUESTION_MESSAGE) == JOptionPane.YES_OPTION)
System.exit(0);
}

public void windowOpened(WindowEvent arg0) {
}

public void windowClosed(WindowEvent arg0) {
}

public void windowIconified(WindowEvent arg0) {
}

public void windowDeiconified(WindowEvent arg0) {
}

public void windowActivated(WindowEvent arg0) {
}

public void windowDeactivated(WindowEvent arg0) {
}

}

[JosAH]

Add the following line when you initialize your window:

setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);

kind regards,

Jos

[DarrylBurke]

Extend WindowAdapter instead of implementing WindowListener and you won't need to have a bunch of empty methods.

db

[ooJavaoo]

Thanks Jos! it worked like a charm! :D

[JosAH]

Thanks Jos! it worked like a charm! :D

Also pay close attention to what Darryl wrote: extend the WindowApapter class so you won't need all those empty methods.

kind regards,

Jos