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Sorry if there is a question like this already but I couldn't find it. I found things like how to create a button listener and people create a button and perform action on it. I want when the close button ( x button ) is pressed a warning window to pop-up and say that the project is not saved. I couldn't find how to access the close button. How to use a button listener with the close button? Hope made myself clear. Thanks

Nick
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  • Look through the answers to [OnExit Event For a Swing Application?](http://stackoverflow.com/questions/2467070/onexit-event-for-a-swing-application). – PM 77-1 Nov 07 '13 at 01:38
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    I think this link is what your are looking for :) http://stackoverflow.com/questions/9093448/do-something-when-the-close-button-is-clicked-on-a-jframe – a_mid Nov 07 '13 at 01:42
  • thanks, it seems I couldn't google it right .. – Nick Nov 07 '13 at 02:08

2 Answers2

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You need to add a WindowAdapter to your JFrame. 

myFrame.addWindowListener(new WindowAdapter(){
  @Override
  public void windowClosing(WindowEvent e){
     // do something
  }
});

Now, every time someone presses the close button, the windowClosing() method will be called. Check if the user has saved the work. If not, either auto-save it like or promprt user to save it.

An SO User
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1

overload the close/exit action

http://docs.oracle.com/javase/tutorial/uiswing/components/frame.html

Create custom operation for setDefaultCloseOperation?

define a method separately and add listener for close action.

Community
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Acewin
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