user interface - Scala - gui application does not exit -

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i trying run simple gui app in scala/intellij:

def main(args: array[string]) {      val frame = new jframe()     frame.setsize(900, 700)     frame.setvisible(true)      //this not necessary     frame.addwindowlistener(new windowadapter {       override def windowclosed(e: windowevent) {         system.exit(0)       }     })    }

firstly, windowadapter code not invoked when close window... secondly, when close window , app still running , have stop intellij console. ideas might causing this?

the default behavior of jframe when closing hide_on_close says. that's why event isn't getting fired : because window isn't closed. can deal changing default closing behavior of frame :

frame.setdefaultcloseoperation(dispose_on_close)

you can change event windowclosing. see java doc :

invoked when user attempts close window window's system menu.

or can rid of listener , add :

frame.setdefaultcloseoperation(exit_on_close)

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