Make a swing thread that show a “Please Wait” JDialog

Question

The problem is this:
I\'ve a swing application running, at a certain point a dialog requires to insert username and password and to press \"ok\".
I would like tha

Answer 1

public void okButtonActionPerformed(ActionEvent e) {

    final JDialog loading = new JDialog(parentComponent);
    JPanel p1 = new JPanel(new BorderLayout());
    p1.add(new JLabel("Please wait..."), BorderLayout.CENTER);
    loading.setUndecorated(true);
    loading.getContentPane().add(p1);
    loading.pack();
    loading.setLocationRelativeTo(parentComponent);
    loading.setDefaultCloseOperation(JDialog.DO_NOTHING_ON_CLOSE);
    loading.setModal(true);

    SwingWorker worker = new SwingWorker() {
        @Override
        protected String doInBackground() throws InterruptedException 
            /** Execute some operation */   
        }
        @Override
        protected void done() {
            loading.dispose();
        }
    };
    worker.execute();
    loading.setVisible(true);
    try {
        worker.get();
    } catch (Exception e1) {
        e1.printStackTrace();
    }
}