Java Swing -- Asking for User Input (and creating a blocking thread) by popping up a JFrame

Question

My top-level container is MainFrame (JFrame). I want to be able to popup another JFrame with a JPanel that has two JTextFields from MainFrame.

The thing is: I need to be able to block the EDT from the Swing GUI. This is reminscent of using a JOptionPane to block the EDT until the user has either hit OK or CANCEL.

The question is: Is it possible to create a "custom" JOptionPane with user-defined values that will block the EDT?

Thanks

Answer 1

Look into JDialog

You can extend JDialog and call super in your constructor with the second parameter set to true

super(parent, true);   

Answer 2

Use a JDialog

You can set it to be modal in this JDialog(Frame, modal) constructor