[JAVA100例]015、选项卡
时间:2011-01-08
import javax.swing.JTabbedPane;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JFrame;
/**
* <p>Title: 选项卡演示</p>
* <p>Description: 这里是一个选项卡演示，点击不同的卡片，显示的内容不同</p>
* <p>Copyright: Copyright (c) 2003</p>
* <p>Filename: TabbedPaneDemo.java</p>
* @version 1.0
*/
import java.awt.*;
import java.awt.event.*;
public class TabbedPaneDemo extends JPanel {
public TabbedPaneDemo() {
super(new GridLayout(1, 1));
ImageIcon icon = createImageIcon("images/middle.gif");
JTabbedPane tabbedPane = new JTabbedPane();
Component panel1 = makeTextPanel("#第一个卡片#");
tabbedPane.addTab("One", icon, panel1,
"第一个卡片提示信息！");
tabbedPane.setSelectedIndex(0);
Component panel2 = makeTextPanel("##第二个卡片##");
tabbedPane.addTab("Two", icon, panel2,
"第二个卡片提示信息！");
Component panel3 = makeTextPanel("###第三个卡片###");
tabbedPane.addTab("Three", icon, panel3,
"第三个卡片提示信息！");
Component panel4 = makeTextPanel("####第四个卡片####");
tabbedPane.addTab("Four", icon, panel4,
"第四个卡片提示信息！");
//将选项卡添加到panl中
add(tabbedPane);
}
/**
*<br>方法说明：添加信息到选项卡中
*<br>输入参数：String text 显示的信息内容
*<br>返回类型：Component 成员对象
*/
protected Component makeTextPanel(String text) {
JPanel panel = new JPanel(false);
JLabel filler = new JLabel(text);
filler.setHorizontalAlignment(JLabel.CENTER);
panel.setLayout(new GridLayout(1, 1));
panel.add(filler);
return panel;
}
/**
*<br>方法说明：获得图片
*<br>输入参数：String path 图片的路径
*<br>返回类型：ImageIcon 图片对象
*/
protected static ImageIcon createImageIcon(String path) {
java.net.URL imgURL = TabbedPaneDemo.class.getResource(path);
if (imgURL != null) {
return new ImageIcon(imgURL);
} else {
System.err.println("Couldn´t find file: " + path);
return null;
}
}
public static void main(String[] args) {
//使用Swing窗体描述
JFrame.setDefaultLookAndFeelDecorated(true);
//创建窗体
JFrame frame = new JFrame("TabbedPaneDemo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().add(new TabbedPaneDemo(),
BorderLayout.CENTER);
//显示窗体
frame.setSize(400, 200);
frame.setVisible(true);
}
}
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