donghuaimage.java

Java课程中所有的可运行程序 全部都是java课程中所涉及到的源码

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

public class donghuaimage extends Applet implements Runnable{
   Image frame[];
   public Thread runner;
   public int frame_i=0;

    public void init(){
       int i=0;
       frame=new Image[5];
       for(i=0;i<frame.length;i++)
       frame[i]=getImage(getCodeBase(),"images"+i+".gif");


    }



     public void start() {
    if (runner == null); {
     runner = new Thread(this);			  //new Thread
    runner.start();
    }
  }

  public void stop() {
    if (runner != null) {
      runner = null;
    }
  }

public void run() {
  while(Thread.currentThread()==runner){

	  repaint();//no.1 statement
	   try { Thread.sleep(500); }				  //wait
	   catch (InterruptedException e) { }
       			frame_i=(frame_i+1) % frame.length;			 //in order to repaint

}
	          //end of while

 }


public void paint(Graphics g){

   g.drawImage(frame[frame_i],0,0,this);

        }

}