关于button旋钮，actionlistener 和mouseClick 有什么区别呢

package cn.jjw.dzr.awt;

import java.awt.Button;
import java.awt.Color;
import java.awt.Component;
import java.awt.Dialog;
import java.awt.FlowLayout;
import java.awt.Frame;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

public class AwtTest
{
	public static void main(String[] args)
	{
		Component com = new Frame("wo de chuangkou");
		com.setSize(400, 300);
		com.setLocation(200, 100);
		com.setBounds(300, 200, 400, 300);
		com.setVisible(true);
		
		((Frame)com).addWindowListener(new WindowAdapter(){

			@Override
			public void windowClosing(WindowEvent e)
			{
				
				super.windowClosing(e);
				System.out.println(e);
				System.exit(1);
			}
			
		});
		((Frame)com).setLayout(new FlowLayout());
		
		Button button =new Button("按钮");
		((Frame)com).add(button);
		
		button.addActionListener(new ActionListener(){

			@Override
			public void actionPerformed(ActionEvent e)
			{
				// TODO Auto-generated method stub
				System.out.println("ActionPerformed:"+e);
				final Dialog dialog = new Dialog(new Frame());
				//这个Frame代表什么呢。
				//代表dialog的父窗口么。
				dialog.setTitle("Antoher");
				dialog.setVisible(true);
				dialog.setLocation(100, 200);
				dialog.setSize(300, 300);
				dialog.setBackground(Color.BLUE);
			}
			
		});
		button.addMouseListener(new MouseListener(){

			@Override
			public void mouseClicked(MouseEvent e)
			{
				// TODO Auto-generated method stub
				System.out.println("Click: "+e.getButton());
				final Dialog dialog = new Dialog(new Frame());
				//这个Frame代表什么呢。
				//代表dialog的父窗口么。
				dialog.setTitle("Hello");
				dialog.setVisible(true);
				dialog.setLocation(300, 200);
				dialog.setSize(300, 300);
				dialog.setBackground(Color.BLUE);
				
				dialog.addWindowListener(new WindowAdapter(){

					@Override
					public void windowClosing(WindowEvent e)
					{
						// TODO Auto-generated method stub
				//		super.windowClosing(e);
						System.out.println(e);
			//			dialog.setVisible(false);