Closing a running gui

Hi
I have one Java Gui
public class GuiOne extends JFrame {..}
which opens another Gui
public class Gui2 which also extends JFrame,
I create the container for the second gui and add one label then
I do some processing after this but then
"if" a certain condition happens
I would like to close this second Gui but keep the first one open.
Can this be done?
Is there any way to close the second gui (Gui2)? I tryed calling
dispose() but it didnt' seem to work and System.exit() unfortunately
closes both of my gui!
Any help greatly appreciated!
Thanks
Gerry

Ahh, you need to call hide on the frame itself, not
the component.
Example:
public MyPanel extends JPanel implements
ActionListener {
public void actionPerformed(ActionEvent evt) {
Window w =
Window w = SwingUtilities.windowForComponent(this);
w.hide();
Thanks very much it does the trick surely! And my first Gui stays open which is what i want!
But it brings up this error in the command pompt , i'm not too sure if this is supposed to happen.
I just implemented your two lines inside action performed as I dont really want it to close at the hit of a button, just kinda after the program does a bit of processing. ActionPerformed is kinda for when a button is pressed isn't it?
.java.lang.NullPointerException
at TimetableWithParse.<init>(TimetableWithParse.java:132)
at PanelGui2$ButtonHandler.actionPerformed(PanelGui2.java:182)

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