How do I exit a Swing application?

How do I exit a Swing application?

There are two options to close Java Swing application one is EXIT_ON_CLOSE and other is DISPOSE_ON_CLOSE . DISPOSE_ON_CLOSE doesn’t terminate JVM if any user thread is running. You can also implement window listener to implement your closing mechanism by using System. exit() in Swing application.

How do you exit a JFrame?

You can easily close your JFrame by clicking on the X(cross) in the upper right corner of the JFrame. However JFrame. setDefaultCloseOperation(int) is a method provided by JFrame class, you can set the operation that will happen when the user clicks the X(cross).

What does JFrame exit on close do?

EXIT_ON_CLOSE is that once all the jframes are closed, it basically calls a System. exit(0) which means it kills all other outstanding threads!

Can system Exit be used Java?

exit() method exits current program by terminating running Java virtual machine. This method takes a status code. A non-zero value of status code is generally used to indicate abnormal termination.

Is it okay to use system exit in Java?

System. exit() can be used to run shutdown hooks before the program quits. This is a convenient way to handle shutdown in bigger programs, where all parts of the program can’t (and shouldn’t) be aware of each other. Then, if someone wants to quit, he can simply call System.

What does dispose on close mean Java?

14. EXIT_ON_CLOSE will terminate the program. DISPOSE_ON_CLOSE will call dispose() on the frame, which will make it disappear and remove the resources it is using. You cannot bring it back, unlike hiding it.

What is setDefaultCloseOperation JFrame Exit_on_close );?

The setDefaultCloseOperation() method is used to specify one of several options for the close button. Use one of the following constants to specify your choice: JFrame. EXIT_ON_CLOSE — Exit the application.