Java how to make JFrames maximised but not resizable

Question

Originally (See my previous question \"Java how to make JFrames start off as a maximised window\") I wanted to make a window which starts out maximised. This code accomplish

Answer 1

I have kind of a hack for you that might work. Try this code (it worked for me):

public static void main(String[] args) {

    final JFrame frame = new JFrame("Jedia");
    frame.setMinimumSize(new Dimension(600, 400));
    frame.setExtendedState(JFrame.MAXIMIZED_BOTH);
    frame.setVisible(true);

    frame.addComponentListener(new ComponentListener(){

        @Override
        public void componentHidden(ComponentEvent e) {
            // TODO Auto-generated method stub

        }

        @Override
        public void componentMoved(ComponentEvent e) {
            // TODO Auto-generated method stub

        }

        @Override
        public void componentResized(ComponentEvent e) {

            if (!e.paramString().startsWith("COMPONENT_RESIZED (-8,-8"))
            frame.setSize(new Dimension(600, 400));
        }

        @Override
        public void componentShown(ComponentEvent e) {
            // TODO Auto-generated method stub

        }
    }); 
}

e.paramString() returns a String that looks like "COMPONENT_RESIZED (-8,-8, [screensize])" when a restore action takes place.