Catching the window cross button in JFrame

[sandeep dhingra]

What I want to do is catch when the user presses the cross button to close the application which is on a JFrame. Or disable this buton when there is some processing going on in some dialog box, So that the program does not end with unexpected results.
Please if anybody knows.

[Nathan Pruett]

You'll have to add a WindowListener to your JFrame and code this in the windowClosing() method.

[Campbell Ritchie]

. . . or to disable the "x for exit" button on the JFrame use a different Default Close Operation. See the JFrame API.