Question

My swing app has a main window which has sever buttons. This JFrame is launched in the EDT…

    EventQueue.invokeLater(new Runnable() {
        public void run() {
            JFrame server = new JFrame();
            server.setVisible(true);
            server.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

                            //Do other stuff here
        }
    });

Each button can launch a separate JFrame.

I am not sure if I have to start a new EDT thread to launch each of these new windows?
Thanks.

Answer 1

Typically when you are in a button handler (ie actionlistener) it is the EDT that is calling this. You can check this using SwingUtilities.isEventDispatchThread