How to capture a close event in java swing

问题

I want to capture window close(red X right top position) event. I want to display a specified window upon that window based on the event.

回答1:

Register a WindowListener - specifically, use its windowClosing method:

Invoked when the user attempts to close the window from the window's system menu.

回答2:

You need to either implement the WindowListener interface, or register a WindowAdapter.

来源：https://stackoverflow.com/questions/8781108/how-to-capture-a-close-event-in-java-swing