Duke Listens!: Visit my main blog at MusicMachinery.com

One of the really interesting features of Netbeans 6.0 is 'semantic coloring'.  This takes syntax coloring one level further, and colors/highlights code based upon higher level information.  For instance, here's what a deprecated call would look like:

   void myMethod() {
       callToDeprecatedMethod();
   }

There are descriptions of the various other semantic colorings in the Netbeans Java EditorUsersGuide.  Via Charles Ditzel's blog.