JProgressBar not working properly

Question

So my JProgressBar I have set up doesn\'t work the way I want it. So whenever I run the program it just goes from 0 to 100 instantly. I tried using a Prog

Answer 1

You are evoking Thread.sleep inside the EvokeLater which means that it is running on another thread than your for loop. i.e., your for loop is completing instantaneously (well, however long it takes to loop from 1 to 100, which is almost instantaneously).

Move Thread.sleep outside of EvokeLater and it should work as you intend.

    int max = 10;
    for (int i = 0; i <= max; i++) {
        final int progress = (int)Math.round(
            100.0 * ((double)i / (double)max)
        );

        EventQueue.invokeLater(new Runnable() {
            @Override
            public void run() {
                jProgressBar2.setValue(progress);
            }
        });
        try {
            Thread.sleep(1000);
        } catch (InterruptedException ex) {
            Logger.getLogger(BandListGenerator.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

Edit: agree with @MadProgrammer. It appears this is just an illustrative question, but you should make sure whatever you're trying to accomplish here you use a SwingWorker for.