热键启动的问题

[jlkm2011]

package com.hc.FlowerFly;

import java.applet.Applet;
import java.applet.AudioClip;
import java.awt.Toolkit;
import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Random;

import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;

import com.sun.awt.AWTUtilities; 

public class RanShow {
	
	static int high = Toolkit.getDefaultToolkit().getScreenSize().height;
	static int wigth = Toolkit.getDefaultToolkit().getScreenSize().width;
	
	static Random rdm = new Random(System.currentTimeMillis());
	Show s1 = new Show();
	Show s2 = new Show();
	Show s3 = new Show();
	Show s4 = new Show();
	Show s5 = new Show();
	Show s6 = new Show();
	
	URL cb;
	File f = new File("D:/bgmusic.wav");
	AudioClip aau;
	
	class Show extends Thread 
	{
		boolean b = true;
		JFrame jf = new JFrame();
		public void run()
		{
			while(b)
			{
				int i = 0;
				jf.setLayout(null);
				JLabel jl1 = new JLabel(new ImageIcon("D:/111.gif"));
				jl1.setLocation(0, 0);
				jl1.setSize(128, 128);
				jl1.setOpaque(false);
			
				jf.setUndecorated(true);
				jf.setVisible(true);
				jf.setSize(128, 128);
				jf.add(jl1);
				//jf.setLocation(Math.abs(rdm.nextInt(wigth)-128),Math.abs(rdm.nextInt(high)-128));
				AWTUtilities.setWindowOpaque(jf, false);  //设置窗体透明
				
				int rdmint = Math.abs(rdm.nextInt(wigth)-140);
				while(i<high-128)
				{
					jf.setLocation(rdmint, i);  //在随机位置出现
					i ++;
					try {
						Thread.sleep(3);
					} catch (InterruptedException e) {
						e.printStackTrace();
					}
					if(i == high/Math.abs(rdm.nextInt(5)+1))  //在屏幕的随机位置停顿
					{
						try {
							Thread.sleep(1000);
						} catch (InterruptedException e) {
							e.printStackTrace();
						}
					}
				}
				
				try {
					Thread.sleep(1000);
				} catch (InterruptedException e) {
					e.printStackTrace();
				}
				jf.dispose();
			}
		}
		public void shutdown()
		{
			b = false;
		}
		public void again()
		{
			b = true;
		}
	}
	
	public void startThread()
	{
		s1.start();
		s2.start();
		s3.start();
		s4.start();
		s5.start();
		s6.start();
	}
	public void stopThread()
	{
		s1.shutdown();
		s2.shutdown();
		s3.shutdown();
		s4.shutdown();
		s5.shutdown();
		s6.shutdown();
	}
	
	public void palyMusic()   //开始播放音频
	{
		try {
			cb = f.toURL();
			aau = Applet.newAudioClip(cb);
			aau.loop();
		} catch (MalformedURLException e) {
		
			e.printStackTrace();
		}
	}
	public void stopMusic()  //停止播放音频
	{
		try {
			cb = f.toURL();
			aau = Applet.newAudioClip(cb);
			aau.stop();
		} catch (MalformedURLException e) {
		
			e.printStackTrace();
		}
	}
	
	
}

这是随机出现图片的类

package com.hc.FlowerFly;

import java.awt.Color;
import java.awt.Toolkit;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;

public class FlowerFlyStart extends JFrame {
	
	RanShow rsh = new RanShow();
	static int high = Toolkit.getDefaultToolkit().getScreenSize().height;
	static int wigth = Toolkit.getDefaultToolkit().getScreenSize().width;
	
	FlowerFlyStart()
	{
		this.addKeyListener(new KeyAdapter()
		{
			public void keyPressed(KeyEvent e)
			{
				if(e.getKeyCode() == KeyEvent.VK_F1)
				{
					keyStart();
					JOptionPane.showMessageDialog(null, "sss");
				}
				if(e.getKeyCode() == KeyEvent.VK_F2)
				{
					keyStop();
					rsh.stopMusic();
					JOptionPane.showMessageDialog(null, "222");
				}
	
				if(e.getKeyCode() == KeyEvent.VK_F10)
				{
					keyStop();
					rsh.stopMusic();
					System.exit(0);
				
				}
			
			}
		});
	}
	public void keyStart()
	{
		
		rsh.palyMusic();
		rsh.startThread();
	}
	public void keyStop()
	{
		rsh.stopThread();
		rsh.stopMusic();
	}
	
	public static void main(String[] args)
	{
		FlowerFlyStart flower = new FlowerFlyStart();   //显示热键提示
		flower.setLocation(wigth-270, high-80);
		flower.setSize(240, 30);
		flower.setUndecorated(true);
		flower.setVisible(true);
		
		JLabel j1 = new JLabel();
		j1.setForeground(Color.GREEN);
		j1.setLocation(0, 0);
		j1.setSize(240, 30);
		j1.setText("     热键   F1：开始  F2：暂停  F10：退出");
		j1.setBackground(Color.BLACK);
		j1.setOpaque(true);
		flower.add(j1);
		
		
	}
}

这是调用的类，现在的问题是按F1启动后，再按F2和F10都没效果了，调试了半天不知道哪出问题了