要隐藏旋钮，请
Slider.horizontalThumbIcon使用空白图标覆盖UIManager的属性，如下所示：
public static void main(String[] args) throws Exception { UIManager.getLookAndFeelDefaults().put("Slider.horizontalThumbIcon",new Icon(){ @Override public int getIconHeight() { return 0; } @Override public int getIconWidth() { return 0; } @Override public void paintIcon(Component c, Graphics g, int x, int y) { //do nothing } }); Jframe f = new Jframe(); JSlider slider = new JSlider(JSlider.HORIZONTAL, 0, 30, 15); slider.setMajorTickSpacing(10); slider.setMinorTickSpacing(1); slider.setPaintTicks(true); slider.setPaintLabels(true); f.add(slider); f.setSize(200,200); f.setVisible(true);}
