JAVA GUI学习 - JTabbedPane选项卡组件学习

 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 }