1 public class JTabbedPaneKnow extends JFrame
2 {
3 JTabbedPane jTabbedPane;
4 JPanel jPanelRed;
5 JPanel jPanelGreen;
6 JPanel jPanelYellow;
7 JPanel jPanelBlue;
8 public JTabbedPaneKnow()
9 {
10 init();
11 this.setBounds(200, 50, 500, 500);
12 this.setTitle("选项卡 - 知识");
13 this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
14
15 this.add(jTabbedPane);
16 }
17 public void init()
18 {
19 jPanelBlue = new JPanel();jPanelBlue.setBackground(Color.blue);jPanelBlue.setName("蓝色卡牌");
20 jPanelGreen = new JPanel();jPanelGreen.setBackground(Color.green);jPanelGreen.setName("绿色卡牌");
21 jPanelRed = new JPanel();jPanelRed.setBackground(Color.red);jPanelRed.setName("红色卡牌");
22 jPanelYellow = new JPanel();jPanelYellow.setBackground(Color.yellow);jPanelYellow.setName("黄色卡牌");
23
24 //第一个参数：选项卡的标题所在位置：上下左右
25 //第二个参数：即选项卡呈现的方式：当窗口变小时：卡标题向下排列，或不重排列出现滚动条
26 jTabbedPane = new JTabbedPane(JTabbedPane.TOP,JTabbedPane.SCROLL_TAB_LAYOUT);
27
28 //第一个参数：即选项卡显示的标题
29 //第二个参数：即选项卡没张卡对应的面板
30 jTabbedPane.add("蓝色卡牌", jPanelBlue);jTabbedPane.add("绿色卡牌", jPanelGreen);
31 jTabbedPane.add("红色卡牌", jPanelRed);jTabbedPane.add("黄色卡牌", jPanelYellow);
32
33 //设置默认的选项卡页，方式一：通过选项卡的索引
34 jTabbedPane.setSelectedIndex(1);
35
36 //设置默认的选项卡页，方式二：通过选项卡变量名
37 jTabbedPane.setSelectedComponent(jPanelGreen);
38
39 //获取当前卡页的选项卡索引
40 int index = jTabbedPane.getSelectedIndex();
41 //获取当前卡页的选项卡面板
42 JPanel jPanel = (JPanel) jTabbedPane.getSelectedComponent();
43 System.out.println(jPanel.getName());
44
45 //为选项卡添加监听器
46 jTabbedPane.addChangeListener(new JTabbedPaneChangeListener());
47 }
48 private class JTabbedPaneChangeListener implements ChangeListener
49 {
50 @Override
51 public void stateChanged(ChangeEvent e)
52 {
53 JTabbedPane jTabbedPane = (JTabbedPane) e.getSource();
54 JOptionPane.showMessageDialog(null, ((JPanel)jTabbedPane.getSelectedComponent()).getName()+"：被打开了");
55 }
56 }
57 public static void main(String[] args)
58 {
59 JTabbedPaneKnow jTabbedPaneKnow = new JTabbedPaneKnow();
60 jTabbedPaneKnow.setVisible(true);
61 }
62
63 }
