cartoonmusic.java

经典的java applet小程序下来看看说不定有启发哦

import java.awt.*;
import java.applet.*;

public class CartoonMusic extends Applet implements Runnable {
  Thread thread1,thread2;
  AudioClip  m_audio ;
  Image[] m_Images= new Image[5] ;
  int totalImages =5; //图片序列中的图片总数
  int currentImage = 0;	//当前时刻应该显示的图片序号

  public void init() {
    m_audio  = getAudioClip(getCodeBase(), "sound/test.au");
    for(int i=0;i<=totalImages-1;i++)
    m_Images[i] = getImage(getDocumentBase(),"images/P"+ i + ".gif");
  }

  public void start() {
    if(thread1 == null){
      thread1 = new Thread(this,"t1");
      thread1.start();                    //启动线程t1 ，播放音乐
    } 
    if(thread2 == null){
      thread2 = new Thread(this,"t2");
      thread2.start();                    // 启动线程t2，演示动画
    } 
  }

  public void run() {
    String s = Thread.currentThread().getName();
    System.out.println("----------"+ s + "----");
    if (s.equals("t1")){
      while(true) {
        m_audio.play();
       
        try{
          Thread.sleep(3000);//如果播放的音乐时间长，则此处睡眠的时间也应加长
        }catch(InterruptedException e){}
      }
    }
    else if (s.equals("t2")){
      while(true){
        repaint();
        try{
          Thread.sleep(2000);
        }catch(InterruptedException e){}
      }
    }
  }

  public void paint(Graphics g)  {
    g.drawImage(m_Images[currentImage],50,50,this);	//显示当前序号的图片
    currentImage = ++currentImage % totalImages; //计算下一个应显示图片的序号
  }

  public void stop(){
    //thread1.stop();不提倡使用
    //thread2.stop();
    thread1=null;
    thread2=null;
  }
}