To end an application, you pass this as the argument to the JFrame class's setDefaultCloseOperation method.
A) JFrame.CLOSE_NOT_HIDE
B) JFrame.END_ON_CLOSE
C) END_ON_CLOSE
D) JFrame.EXIT_ON_CLOSE

Question

Quizplus · Accepted Answer

The correct choice is D (JFrame.EXIT_ON_CLOSE). This argument ensures that the application exits completely when the user closes the JFrame window, terminating any running threads and releasing any reserved resources. The other options are not valid arguments for setDefaultCloseOperation() and will either do nothing or cause the window to simply hide without fully closing the application.

To End an Application, You Pass This as the Argument