🚀 go-pugleaf

Thanks! I tried it and it worked, but then the question: I used null and
that worked also. Both Frame1.this and null seem to have the same
functionality, in this very tiny example. What is the difference (a pointer
to an article would help, or just "it is too complicated to go into here,"
is also ok).

RON
"Kevin Dean" <NkOdSePaAnM@datadevelopment.com> wrote in message
news:4050d4ef@newsgroups.borland.com...
> That you want is:
>
> int confirm = JOptionPane.showOptionDialog(Frame1.this, ...
>
> Using "Frame1.this" tells the compiler that you want the "this" object
> referring to the outer Frame1 class, not the "this" object referring to
the
> anonymous adapter.
>
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> "Ron" <rgans@nospamRonaldgansphotographyDOTcom> wrote in message
> news:4050d3d3$1@newsgroups.borland.com...
> > I have a JFrame (Frame1) and in the constructor, I want to provide for
an
> > exit confirmation dialog. I add the code as follows:
> >
> > public class Frame1 extends JFrame implements WindowConstants {
> >   public Frame1() {
> >     super ("Focus Frame");
> >
> > //Code left out
> >
> >  setDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE ) ;
> >    WindowAdapter a = new WindowAdapter() {
> >       public void windowClosing(WindowEvent e) {
> >         int confirm = JOptionPane.showOptionDialog(Frame1, "Really
> > exit?",<---ERROR HERE
> > //--->>>Error is: "Frame1.java": Error #: 300 : variable Frame1 not
found
> in
> > anonymous class of constructor Frame1()
> > //-->>>I UNDERSTAND why this is occurring, but how can I remedy it?
> >             "Exit Confirmation",
> >             JOptionPane.YES_NO_OPTION,
> >             JOptionPane.QUESTION_MESSAGE,
> >             null, null, null);
> >         if (confirm == 0) {
> >           //Frame1.dispose();
> >           System.exit(0);
> >         } //if
> >       }
> >     };//new
> >
> >   //Frame1.windowDeactivate();
> >   addWindowListener(a);
> >
> >
> > Thanks
> > RON
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > _________________________________________________________
> > Black and White Photography: http://www.ronaldgansphotography.com
> >
> >
>
>