Question

Not really that familiar with Swing, and am writing a client-server UDP chat application. Everything is working fine, except I would like my clients to send a notification to the server and to close the DatagramSocket when their windows are closed. Where do I put my code so that it executes upon closing the window?

Answer 1

Register a WindowAdapter to the container and override it’s windowClosing method.

---

Example

foo.addWindowListener(new WindowAdapter(){
    @Override
    public void windowClosing(WindowEvent e){
        // do stuff
    }
});

where foo is your container instance.