How to launch a pop up when a user clicks close on a Java Swing application -

this question has answer here:

• setdefaultcloseoperation show jframe instead 3 answers

i have jframe has setdefaultcloseoperation(jframe.exit_on_close);

is possible me change when user clicks close launch "are sure?" joptionpane style pop up?

how can this?

you need add windowlistener. here's example:

public class test {      public static void main(string[] args) {         final jframe frame = new jframe();         jlabel label = new jlabel("test");         frame.getcontentpane().add(label);         frame.pack();          frame.setdefaultcloseoperation(windowconstants.do_nothing_on_close);          frame.addwindowlistener(new windowadapter() {              @override             public void windowclosing(windowevent ev) {                 int result = joptionpane.showconfirmdialog(frame, "sure?");                  if (result == joptionpane.ok_option) {                     frame.dispose();                 }             }         });          frame.setvisible(true);     } }