cartoon.java

java程序

//类Cartoon
import java.awt.*;
import java.applet.*;
import java.net.URL;

public class Cartoon extends Applet implements Runnable
{
Image imageNow,images[];
Thread thisThread;
int idImageNow=0;
int animationSpeed;
int imageNumber;

public void init()
{
int i;
String param;
//读取动画速度
param=getParameter("AnimationSpeed");
animationSpeed=(param==null)?3:Integer.valueOf(param).intValue();

//读取动画图片数量
param=getParameter("ImageNumber");
imageNumber=(param==null)?1:Integer.valueOf(param).intValue();

//读取存放动画图片的地址
URL imageUrl=getDocumentBase();
images=new Image[imageNumber];

for(i=0;i<imageNumber;i++)
	    images[i]=getImage(imageUrl,"Christmas"+i+".jpg");
}

public void start()
    {
if(thisThread == null)
{
    thisThread=new Thread(this);//创建线程
    thisThread.start();           //线程开始运行
}
}

public void stop()
    {
    thisThread= null;
}

public void run()
    {
while (thisThread!= null)
    {
	    try
{Thread.sleep(1000/animationSpeed);}
	    catch (InterruptedException e)
{}
	    repaint();
	idImageNow++;
	if(idImageNow>=imageNumber)
		idImageNow=0;
}
thisThread= null;
}

public void paint(Graphics g)
    {
	    g.drawImage(images[idImageNow],1,1,this);
}
}