Resizing windows (JFrame)

Question

Hi,
I am developing data entry screens and would like to ensure that the user cannot resize, maximize or minimize, i.e can only close the window (JFrame).
The reason is that if the user maximizes the screen the data input fields are distributed over the screen and this does not look so great!
Only the minimize option seems to make sense.
How do I do this?
Brgds and happy new year
John

Answer 1

I thought you could use this:
frame.setUndecorated(true);
frame.getRootPane().setWindowDecorationStyle(JRootPane.PLAIN_DIALOG);
frame.setResizable(false);But it looks bad.
If you want to get also an entry in the Task Bar create a JFrame with size 0,0 and setUndecorated(true).
And create your JDialog like this:
               JFrame frame = new JFrame("test");
               frame.setSize(0, 0);
               frame.setUndecorated(true);
               frame.setVisible(true);
               JDialog dialog = new JDialog(frame);
               dialog.setSize(300, 300);
               dialog.setVisible(true);
               dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
               dialog.addWindowListener(new WindowAdapter() {
                    public void windowClosed(WindowEvent e) {
                         System.exit(0);
               });