Question

I’ve got frame with two JPanels on it in GridLayout :

    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setSize(400,400);

    contentPane = new JPanel();
    contentPane.setLayout(new GridLayout(1,2));
    contentPane.add(addPanel());
    contentPane.add(addPanel());
    add(contentPane);

addPanel() function create JPanel with random colors. When I move mouse cursor on the line between this two panels, I would like to be able to resize dynamically that panels. One becomes wider, and second thiner. How do manage it?

Answer 1

You can use a JSplitPane.