🚀 go-pugleaf

Try using the following method on the frame:
frameThePanelIsOn.pack(); Or use the pack on the parent any parent
container.

Also if you add buttons that are not showing up the following methods also
help.
panelData.validate();
panelData.repaint();

>I would like to change the contents of a Panel at runtime, so that a
>different form displays depending on which menu item the user picks:  if
>they pick "Xyz", the corresponding panel appears.  If they then pick "Abc",
>Xyz disappears and Abc replaces it.
>
>I tried the following code:
>
>       void menuEntryRetax_actionPerformed(ActionEvent e) {
>         this.setTitle("Real Estate Taxes - " + PLAN_YEAR);
>         EntryRetax theWin = new EntryRetax();
>         panelData.add(theWin, BorderLayout.NORTH);
>       }
>
>but the new panel didn't show up.  What am I doing wrong?