This interface defines a class which can save an Image to a file. The
writing may be compressed, lossy, or whatever, just as long as a proper
file Diff of the same Image (but different files) will result in no
differences.
author: Matt Albrecht groboclown@users.sourceforge.net version: Jan 7, 2002
Write the given image to the given file.
Parameters: image - The screen image to write to disk. Parameters: file - The File to save the image as. exception: IOException - thrown if there was a problem saving the image tothe file.