testevent.java

自己做的一个QQ聊天系统

package test.gui;

import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;

import javax.swing.JButton;
import javax.swing.JFrame;

public class TestEvent {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		JFrame frame = new JFrame("test event'");
		JButton b = new JButton("button");
		b.addMouseListener(new MyListener());
		frame.add(b);
		frame.setSize(400,400);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setVisible(true);

	}
	
}
class MyListener implements MouseListener{

	public void mouseClicked(MouseEvent e) {
		// TODO Auto-generated method stub
		JButton b = (JButton) e.getSource();
        b.setText("鼠标点击");		
	}

	public void mousePressed(MouseEvent e) {
		// TODO Auto-generated method stub
		JButton b = (JButton) e.getSource();
        b.setText("鼠标按住");	
	}

	public void mouseReleased(MouseEvent e) {
		// TODO Auto-generated method stub
		JButton b = (JButton) e.getSource();
        b.setText("鼠标抬起来");		
	}

	public void mouseEntered(MouseEvent e) {
		// TODO Auto-generated method stub
		JButton b = (JButton) e.getSource();
        b.setText("鼠标进入");		
	}

	public void mouseExited(MouseEvent e) {
		// TODO Auto-generated method stub
		JButton b = (JButton) e.getSource();
        b.setText("鼠标退出");	
	}
	
}