<p>Ditto on Javanotes mentioned above. I had an hour each day at school to self-study from the Javanotes PDF. If you really stick with it and do the exercises, you’ll be in good shape. You really only need to study up through Chapter 9 - Linked Data Structures & Recursion. Spend any additional time you have going over test-specific material such as GridWorld.</p>
<p>I used Barron’s to nail down the finer points of the test, and it was relatively cheap. BlueJ is probably the most commonly used IDE for Comp. Sci. A. Eclipse is awesome, but excessive if you’re only looking to do well on the exam. Good luck!</p>