你指的是Tab页吧？ Java中没有这样的东西。
大概实现应该是：
最外层是一个JTabbedPane ，里面是4个JPanel，
这4个JPanel 会根据事件进行切换（隐藏和显示）
示例（跟图中不完全一样，但大概原理是一样的）：
package components;
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.event.KeyEvent;
import java.net.URL;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTabbedPane;
import javax.swing.SwingUtilities;
@SuppressWarnings("serial")
public class TabbedPaneDemo extends JPanel {
public TabbedPaneDemo()
{
//设置布局管理器，默认的布局管理器是 BorderLayout,这里没那么复杂
//选择GridLayout(1,1)即可，就是整个为一块
super(new GridLayout(1,1));
//创建JTabbedPane
JTabbedPane tp = new JTabbedPane();
//创建标签显示的图标
ImageIcon ii = createImageIcon("images/middle.gif");
//创建第一个标签下的panel
JPanel panel0 = createPanel("panel0");
//指定标签名，标签图标，panel，和提示信息
tp.addTab("panel0",ii,panel0,"do noting");
//设置标签的快捷键
tp.setMnemonicAt(0, KeyEvent.VK_0);
//第二个标签
JPanel panel1 = createPanel("panel1");
tp.addTab("panel1",ii,panel1,"do noting");
tp.setMnemonicAt(1, KeyEvent.VK_1);
//第三个标签
JPanel panel2 = createPanel("panel2");
tp.addTab("panel2",ii,panel2,"do noting");
tp.setMnemonicAt(2, KeyEvent.VK_2);
//第四个标签
JPanel panel3 = createPanel("panel3");
tp.addTab("panel3",ii,panel3,"do noting");
tp.setMnemonicAt(3, KeyEvent.VK_3);
//设置合适的显示尺寸，这个是必须的，因为如果所有的标签都
//不指定适合的显示尺寸，系统无法判断初始显示尺寸大小
//默认是使用最小化，并且对一个标签设计即可
tp.setPreferredSize(new Dimension(500,500));
//将tabbedPanel添加到Jpanel中
add(tp);
//设置窗口过小时，标签的显示策略
tp.setTabLayoutPolicy(JTabbedPane.SCROLL_TAB_LAYOUT);
//设置标签停放的位置，这里设置为左侧停放
tp.setTabPlacement(JTabbedPane.LEFT);
}
private JPanel createPanel(String string) {
//创建一个JPanel，并为构造函数初始false
//表示不适用双缓冲
JPanel panel = new JPanel(false);
//设置布局
panel.setLayout(new GridLayout(1,1));
//创建一个label放到panel中
JLabel filler = new JLabel(string);
filler.setHorizontalAlignment(JLabel.CENTER);
panel.add(filler);
return panel;
}
private ImageIcon createImageIcon(String string) {
URL url = TabbedPaneDemo.class.getResource(string);
if(url == null)
{
System.out.println("the image "+string+" is not exist!");
return null;
}
return new ImageIcon(url);
}
public static void createAndShowGUI()
{
JFrame frame = new JFrame("table panel test");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(new TabbedPaneDemo());
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
createAndShowGUI();
}
});
}
}
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可以使用java里的Swing组件有一个JTabbedPane实现这样的功能
JTabbedPane tabbedPane = new JTabbedPane();
ImageIcon icon = createImageIcon("images/middle.gif");
JComponent panel1 = makeTextPanel("Panel #1");
tabbedPane.addTab("Tab 1", icon, panel1,
"Does nothing");
tabbedPane.setMnemonicAt(0, KeyEvent.VK_1);
JComponent panel2 = makeTextPanel("Panel #2");
tabbedPane.addTab("Tab 2", icon, panel2,
"Does twice as much nothing");
tabbedPane.setMnemonicAt(1, KeyEvent.VK_2);
JComponent panel3 = makeTextPanel("Panel #3");
tabbedPane.addTab("Tab 3", icon, panel3,
"Still does nothing");
tabbedPane.setMnemonicAt(2, KeyEvent.VK_3);
JComponent panel4 = makeTextPanel(
"Panel #4 (has a preferred size of 410 x 50).");
panel4.setPreferredSize(new Dimension(410, 50));
tabbedPane.addTab("Tab 4", icon, panel4,
"Does nothing at all");
tabbedPane.setMnemonicAt(3, KeyEvent.VK_4);
