jtabbedpanedemo.java

java课程的资料以及实验的代码

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class JTabbedPaneDemo extends JFrame{
  JLabel jl;
  public JTabbedPaneDemo() {
    JTabbedPane jtp = new JTabbedPane();
    jtp.addTab("Cities", new CitiesPanel());
    jtp.addTab("Colors", new ColorsPanel());
    jtp.addTab("Flavors", new FlavorsPanel());
    getContentPane().add(jtp);
 	}
 	
  public static void main(String[] args){
  	JTabbedPaneDemo s=new JTabbedPaneDemo();
  	s.setSize(300,150);
  	s.setVisible(true);
  }
}

class CitiesPanel extends JPanel {
  public CitiesPanel() {
	  JButton jtb=new JButton("New York");
    add(jtb);
    jtb.addActionListener(new ActionListener(){
    	public void actionPerformed(ActionEvent ae)
    	{
    		JOptionPane.showMessageDialog(null, "You select New York");
    	}
    	
    });
    add(new JButton("London"));
    add(new JButton("Hong Kong"));
    add(new JButton("Tokyo"));
  }
}

class ColorsPanel extends JPanel {
  public ColorsPanel() {
    add(new JCheckBox("Red"));
    add(new JCheckBox("Green"));
    add(new JCheckBox("Blue"));
  }
}

class FlavorsPanel extends JPanel {
  public FlavorsPanel() {
    JComboBox jcb = new JComboBox();
    jcb.addItem("Vanilla");
    jcb.addItem("Chocolate");
    jcb.addItem("Strawberry");
    add(jcb);
  }
}