What does this compiling error mean?

[Plutonic]

Note: C:\Documents and Settings\Steven\My Documents\Java\Bouncy Ball\BouncyBall.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.

[CygnetGames]

When Sun release new version of java, they sometimes find a new way to implement something. (A more secure way, or a way that make less problems for people using it.) So this means that some functions become obsolete (or deprecated in java terminology.)

You must be using one of these deprecated functions in your code. If you add the flag -Xlint:deprecation when you compile your program, it will tell you which function is deprecated and might even tell you what to use instead.