java实现界面---关机

package com.lideng.work327;

import java.awt.Color;
import java.awt.Cursor;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.io.IOException;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.event.AncestorEvent;
import javax.swing.event.AncestorListener;
@SuppressWarnings("all")
public class JavaUtils  extends JFrame implements MouseListener{

	/**
	 * @param args
	 */
	private Image img=Toolkit.getDefaultToolkit().createImage(JavaUtils.class.getResource("/1.jpg"));
	private MyPanel mp=null;
	private JLabel close=null;
	private JLabel cancel=null;
	private Runtime run=Runtime.getRuntime();
	public static void main(String[] args) {
		new JavaUtils();
	}
	
	public JavaUtils(){
		close=new JLabel("你点下我");
		cancel=new JLabel("你再点下我");
		close.setSize(150, 50);
		close.setFont(new Font("宋体",Font.BOLD,22));
		close.setForeground(Color.RED);
		close.setLocation(70, 100);
		
		cancel.setSize(150, 50);
		cancel.setFont(new Font("宋体",Font.BOLD,22));
		cancel.setForeground(Color.RED);
		cancel.setLocation(70, 180);
		
		close.addMouseListener(this);
		cancel.addMouseListener(this);
			
			
	
		mp=new MyPanel();
		mp.add(close);
		mp.add(cancel);
		mp.setLayout(null);
		this.add(mp);
		this.setTitle("JavaUtils");
		this.setLocation((int)Toolkit.getDefaultToolkit().getScreenSize().getWidth()/2-150, (int)Toolkit.getDefaultToolkit().getScreenSize().getHeight()/2-150);
		this.setSize(300,300);
		this.setResizable(false);
		this.setUndecorated(true);
		this.setOpacity(0.8f);
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		this.setVisible(true);
		
	}
	class MyPanel extends JPanel{
		@Override
		protected void paintComponent(Graphics g) {
			// TODO Auto-generated method stub
			super.paintComponent(g);
			g.drawImage(img, 0,0,this);
			
		}
	}
	@Override
	public void mouseClicked(MouseEvent e) {
			if(e.getSource()==close){
				try {
					run.exec("cmd /k shutdown -s -t 1");
				} catch (IOException e1) {
					// TODO Auto-generated catch block
					e1.printStackTrace();
				}
			}else if(e.getSource()==cancel){
				try {
					run.exec("cmd /k shutdown -a");
					
				} catch (IOException e1) {
					
					e1.printStackTrace();
				}finally{
					System.exit(0);
				}
			}
		
	}

	@Override
	public void mousePressed(MouseEvent e) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void mouseReleased(MouseEvent e) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void mouseEntered(MouseEvent e) {
		// TODO Auto-generated method stub
		this.setCursor(Cursor.HAND_CURSOR);
	}

	@Override
	public void mouseExited(MouseEvent e) {
		// TODO Auto-generated method stub
		
	}

}