Run Multiple Java Thread

bool isFinished = false;
final ProgressDialogue dialogue = new ProgressDialogue("Loading...");
final Thread progressThread = new Thread() {
    public void run() {
        dialogue.setVisible(true);
    }
};
final Thread progressEvent = new Thread() {
    public synchronized void run() {
        /* DO SOME WORK */
        isFinished = true;
    }
};
 final Runnable doFinished = new Runnable() {
     public void run() { saveBackupFile(); }
};
final Thread progressMonitor = new Thread() {
    public void run() {
        while (true) {
            try {
                /* SLEEP SOME TIME 1000 ms */
                Thread.sleep(1000);
            } catch (Exception ex) {

            }
            /* WAIT FOR WORK FINISHED */
            if (isFinished) {
                /* FINISH ALL */
                Thread.currentThread().interrupt();
                break;
            }
        }
         /* CALL DO FINISH METHOD WHEN THIS PROCESS REACH TO END */
         SwingUtilities.invokeLater(doFinished);
    }
};
progressThread.start();
progressEvent.start();
progressMonitor.start();