Java Swing: Modal loading screen?

Question

I have a Java swing application which loads a web page. Sometimes, the web page takes a while to load depending on the user's internet connection.

I want to block this frame until page has loaded.

Answer 1

The simplest option is to pop up a modal dialog:

JDialog modalDialog = new JDialog(frame, "Busy", ModalityType.DOCUMENT_MODAL);
modalDialog.setSize(200, 150);
modalDialog.setLocationRelativeTo(frame);
modalDialog.setVisible(true);

You may want to put a progress bar in it.