If you scored a 90% on the 1.2 mock exam -- I think you're in excellent shape.
But before you take the 1.4 exam, I'd study assertions (that's the one topic that was added tot he exam). Also, you can forgot everything you learned about AWT & I/O 'cause you won't be tested on those.
Check out
this information provided by Khalid and Rasmussen in order to prepare for the 1.4 exam if you are using their 1.2 book.
And also,
Dan Chisholm's mock exams he's got lots of assertion - specific questions.
Good luck!
[ July 08, 2003: Message edited by: Jessica Sant ]