Once the image is loaded draw it in the paint() method
using the drawImage() method like this
g.drawImage(img, x, y, io)
img is a member of the Image class which
you should have already loaded in your init() method.
x is the x coordinate of the upper left hand corner of
the image. y is the y coordinate of the upper left
hand corner of the image. io is a member of a class
which implements the ImageObserver interface. The
ImageObserver interface is how Java handles the
asynchronous updating of an Image when it's loaded from a remote
web site rather than directly from the hard drive.
java.applet.Applet implements ImageObserver so for now
just pass the keyword this to drawImage()
to indicate that the current applet is the ImageObserver that should be used.
A paint() method that does nothing more than draw
an Image starting at the upper left hand corner of the applet may
look like this
public void paint(Graphics g) {
g.drawImage(img, 0, 0, this);
}