simple1.java

金旭亮的java教案

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class Simple1
{
	private static JFrame frame;
	private static JPanel myPanel;
	private JButton button1;
	private JButton button2;
	
	public Simple1()
	{
		myPanel=new JPanel();
		button1=new JButton("Button 1");
		button2=new JButton("Button 2");
		
		SimpleListener ourListener=new SimpleListener();
		
		button1.addActionListener(ourListener);
		button2.addActionListener(ourListener);
		
		myPanel.add(button1);
		myPanel.add(button2);
		
	}
	
	private class SimpleListener implements ActionListener
	{
		public void actionPerformed(ActionEvent e)
		{
			String buttonName=e.getActionCommand();
			if(buttonName.equals("Button 1"))
				JOptionPane.showMessageDialog(frame,"Button 1 Pressed");
			else if(buttonName.equals("Button 2"))
				JOptionPane.showMessageDialog(frame,"Button 2 Pressed");
			else
				JOptionPane.showMessageDialog(frame,"Unknown event");
		}
				
		
	}
	public static void main(String s[])
	{
		Simple1 gui=new Simple1();
		frame=new JFrame("Simple1");
		frame.addWindowListener(
			new WindowAdapter()
			{
				public void windowClosing(WindowEvent e)
				{
					System.exit(0);
				}
			
			});
		frame.getContentPane().add(myPanel);
		frame.pack();
		frame.setVisible(true);
	}
		
}