minimize button and system tray

Hello

When i push the minimize button i would like to do a

Code:

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myFrame.setState ( Frame.ICONIFIED );

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but the question is, where do i write this?

also, i would like my application the go to system tray:

Code:

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  public void systemTray() {
        if (SystemTray.isSupported()) {
            SystemTray tray = SystemTray.getSystemTray();
            Image image = Toolkit.getDefaultToolkit().getImage("sdu.gif");


            ActionListener exitListener = new ActionListener() {

                public void actionPerformed(ActionEvent e) {
                    System.out.println("Exiting...");
                    System.exit(0);
                }
            };


            PopupMenu popup = new PopupMenu();
            MenuItem defaultItem = new MenuItem("Exit");
            defaultItem.addActionListener(exitListener);
            popup.add(defaultItem);

            trayIcon = new TrayIcon(image, "Tray Demo", popup);
            trayIcon.setImageAutoSize(true);

            try {
                tray.add(trayIcon);
            } catch (AWTException e) {
                System.err.println("TrayIcon could not be added.");
            }

        }
    }

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but when i put the method in the main method, is says:

non-static method systemTray() cannot be referenced from a static contex

How do i fix this? thanks! :)

you would need to create an instance of the class containing the method, inside your main() and then invoke methodInstance.systemTray(), or, make this test method static.