How do I use SwingWorker in Java?

Question

Related to my previous question: Call repaint from another class in Java?

I\'m new to Java and I\'ve had a look at some tutorials on Swi

Answer 1

Agree:

Running long-running tasks on the Event Dispatch Thread (EDT) can cause the GUI to lock up.

Do not agree:

so one of the things which were done is to use SwingUtilities.invokeLater and invokeAndWait which keeps the GUI responsive..

invokeLater still runs the code on the EDT, and can freeze your UI!! Try this:

SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                try {
                    Thread.sleep(100000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        });

At least I, cannot move my mouse once I click the button which triggers the actionPerformed with the above code. Am I missing something?