how to make a JDialog frameless?

Question

my dialog example as following:

public class DialogNotify extends JDialog{
   public DialogNotify() {
      setModal(true);
      setSize(200, 100);
      setVisible(true);
   }
}

how to make it shown frameless ? by frameless, I mean with "close" button on top right or menu bar on top left.

Answer 1

I found this blog entry on the topic: Making a Custom Frameless Window

The key thing seems to be to call setUndecorated(true) to suppress the frame and titlebar.