Observed Image Load Java source code

[smart paper boy]

Code:

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

/*
<applet code=ObservedImageLoad width=300 height=300>
<param name="img" value="smile.jpg">
</applet>
*/

public class ObservedImageLoad extends Applet
{
        Image img;
        boolean error=false;
        String imgname;
        public void init()
        {
                setBackground(Color.blue);
                imgname = getParameter("img");
                img = getImage(getDocumentBase(), imgname);
        }
        public void paint(Graphics g)
        {
                if(error)
                {
                        Dimension d = getSize();
                        g.setColor(Color.red);
                        g.fillRect(0,0,d.width,d.height);
                        g.setColor(Color.black);
                        g.drawString("Image not found" + imgname,10,d.height/2);
                }
                else
                {
                        g.drawImage(img,0,0,this);
                }
        }
        public void update(Graphics g)
        {
                paint(g);
        }
        public boolean imageUpdate(Image img, int flags, int x, int y, int w, int h)
        {
                if((flags & SOMEBITS) != 0 )
                {
                      //repaint();
                        repaint(x,y,w,h);
                }
                else if((flags & ABORT) != 0)
                {
                        error = true;
                        repaint();
                }
                return (flags & (ALLBITS|ABORT)) == 0;
        }
}