假设想对一个鼠标的操作进行监听，假设鼠标按下、松开等。则能够使用MouseListener接口。

package com.beyole.util;

import java.awt.event.MouseEvent;

import java.awt.event.MouseListener;

import java.awt.event.WindowAdapter;

import java.awt.event.WindowEvent;

import javax.swing.JFrame;

import javax.swing.JScrollPane;

import javax.swing.JTextArea;

class MyMouseHandle extends JFrame implements MouseListener {

	private JTextArea text = new JTextArea();

	public MyMouseHandle() {

		super.setTitle("Crystal");// 设置标题

		JScrollPane pane = new JScrollPane(text);// 增加滚动栏

		pane.setBounds(5, 5, 300, 200);// 设置绝对位置

		super.add(pane);// 向窗口中增加组件

		text.addMouseListener(this);// 增加mouse监听

		super.setSize(310, 210);

		super.setVisible(true);

		super.addWindowListener(new WindowAdapter() {

			public void windowClosing(WindowEvent arg0) {

				System.exit(1);

			}

		});

	}

	public void mouseClicked(MouseEvent e)// 鼠标单击事件

	{

		int c = e.getButton();// 得到按下的鼠标键

		String mouseInfo = null;// 接收信息

		if (c == MouseEvent.BUTTON1)// 推断是鼠标左键按下

		{

			mouseInfo = "左键";

		} else if (c == MouseEvent.BUTTON3) {// 推断是鼠标右键按下

			mouseInfo = "右键";

		} else {

			mouseInfo = "滚轴";

		}

		text.append("鼠标单击：" + mouseInfo + ".\n");

	}

	public void mouseEntered(MouseEvent e)// 鼠标进入组件

	{

		text.append("鼠标进入组件.\n");

	}

	public void mouseExited(MouseEvent e)// 鼠标退出组件

	{

		text.append("鼠标退出组件.\n");

	}

	public void mousePressed(MouseEvent e)// 鼠标按下

	{

		text.append("鼠标按下.\n");

	}

	public void mouseReleased(MouseEvent e)// 鼠标松开

	{

		text.append("鼠标松开.\n");

	}

}

public class MyMouseEventDemo {

	public static void main(String[] args) {

		new MyMouseHandle();

	}

}

程序截图：