testurlimage.java

有大量的java的实例

import java.applet.Applet;
import java.awt.*;
import java.net.*;
import java.io.*;
public class TestURLImage extends Applet
{
    public void paint(Graphics g)
    {
    Object o;
    try
    {
      URL MyURL = new URL("http://www.tsinghua.edu.cn/background.gif");
      URLConnection MyURLConnection = MyURL.openConnection();
      if ( ( o = MyURLConnection.getContent()) instanceof Image)
	    g.drawImage ( (Image)o,0,0,this);
      }
      catch(MalformedURLException e)
      {	System.out.println("URL in wrong form, check it again.");  }
      catch(IOException e)
      {	System.out.println("IO Exception ocurred when get information.");  }
   }
}