循环JSlider？

DialPlot

 public class CustomSlider extends JSlider{

 public CustomSlider(int begin, int end) {
     super(begin, end);
     setFont(new CustomFont(10));
     setPaintTrack(true);
    setUI(new BasicSliderUI(this) { 
        /*Sets the size of the Handler, should be the same as the OVAL size*/
        @Override
        protected Dimension getThumbSize() {
            return new Dimension(25,25);
        }

        /*Painting the THUMB as a OVAL in the x and y positions of thumbRect (The Handle)*/
        @Override
        public void paintThumb(Graphics g) {
            Graphics2D g2d = (Graphics2D) g;
            g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON);
            Rectangle t = thumbRect;
            g2d.setColor(Color.BLUE);
            g2d.fillOval(t.x, t.y, 25, 25);
        }
    });
    /* Set JLabels for specific Values*/
    Hashtable<Integer, JLabel> position = new Hashtable<Integer, JLabel>();
    position.put(0, new JLabel("HELP"));
    position.put(1, new JLabel("NORMAL"));
    position.put(2, new JLabel("CHAOS"));
    setLabelTable(position);
    setPaintLabels(true);
}