Showing "JOptionPane.showMessageDialog" without stopping flow of execution

Question

I'm currently working on a project that's getting more complex than I thought it would be originally. What I'm aiming to do right now is show a message dialog without halting the execution of the main thread in the program. Right now, I'm using:

JOptionPane.showMessageDialog(null, message, "Received Message", JOptionPane.INFORMATION_MESSAGE);

But this pauses everything else in the main thread so it won't show multiple dialogs at a time, just on after the other. Could this m=be as simple as creating a new JFrame instead of using the JOptionPane?

Answer 1

According to the docs:

JOptionPane creates JDialogs that are modal. To create a non-modal Dialog, you must use the JDialog class directly.

The link above shows some examples of creating dialog boxes.

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One other option is to start the JOptionPane in its own thread something like this:

  Thread t = new Thread(new Runnable(){
        public void run(){
            JOptionPane.showMessageDialog(null, "Hello");
        }
    });
  t.start();

That way the main thread of your program continues even though the modal dialog is up.