...
          app.addWindowListener(new WindowAdapter() {
              public void windowClosed(WindowEvent evt) {
                launchButton.setLabel("Launch the Application");
                launchButton.setEnabled(true);
                app = null;
             }
          });
	...

	TimeTestWindow2.class
	TimeTestWindow2$1.class
	TimeTestWindow2$2.class
	TimeTestWindow2$3.class
	TimeTestWindow2$4.class

• TimeTestWindow2.java