Step 1: keep calm. The exam is simpler than the mock exams in the book. On multiple choise questions there is an indication of the number of correct answers you have to mark.
The difficulty of the questions however is the same. Also no drag and drops any more
Step 2: Read the question, sometimes it states if the program compiles or not.
Step 3: Look for compiler errors. Count the brackets, make sure all methods exist, implements, extends, etc ....
Step 4: Try to find out what the output is or if there are any runtime errors.
time: 150 minutes = more than enough to go over all questions for a second time + passing score = 61%. Should be no problem.