Dodawanie JSlidera i MouseLisnera

 public static void createAndShowGui(List<Double> scoresX, List<Double> scoresY) {
        int maxDataPoints = 800;
        GraphPanel mainPanel = new GraphPanel(scoresX, scoresY);
        mainPanel.setPreferredSize(new Dimension(700, 500));
        //JSlider slider = new JSlider(2, 20, 50, 5);
        JFrame frame = new JFrame("Dane");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.getContentPane().add(mainPanel);
        frame.pack();
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);

frame.add(slider,BorderLayout.NORTH);