what to do after ap java?

I'm a senior in high school and my ap java class is nearing its end. You can look up the scope of the class here http://www.collegeboard.com/student/testing/ap/sub_compscia.html
What java book/api/website should I study when this course ends?

>>38
There's something fishy about Lisaac. I think that thing is actually a class-based OO language pretending to be prototype-based. You can't add slots to existing objects, thus you can't define new prototype at runtime. The only thing it has in common with prototype-based languages is that inheritance is delegation. And you can't use that as a loophole to add new behaviour to an object either, because static typing prevents you from doing so.