test.java

来自「how to move images using java beginners」· Java 代码 · 共 54 行

import java.applet.Applet;
import java.awt.Graphics;
import java.awt.*;
public class test extends Applet implements Runnable
{
Image myimage;
Thread t= null;
private static int xmax;
private int x=0;
private int xinc=1;
public void paint(Graphics g)
{
	g.drawImage(myimage,x,50,null);
	g.drawString("Hello",x,15);
	if(x==xmax) xinc=-1;
	if(x==0) xinc=1;
	x+=xinc;
}
public void init()
{
xmax=this.getWidth()-25;

Toolkit toolkit = Toolkit.getDefaultToolkit();
myimage=getImage(getDocumentBase(),"images.jpg");
MediaTracker mediaTracker = new MediaTracker(this);
mediaTracker.addImage(myimage, 0);
try{
mediaTracker.waitForID(0);
}
catch(InterruptedException ie){}
setVisible(true);
}
public void start()
{
	
	if(t==null)
	{
	 t=new Thread(this);
	 t.start();
	}
}
public void run()
{
	while(true){
		repaint();
		try{
		Thread.sleep(10);
		}
		catch(InterruptedException e){}
		}
}


}