Thanks. The exam had 90 questions to be answered in 180 minutes. The questions were mostly knowledge based, I think. There were some questions with code, which took time to answer. About 30% of the questions were from the Java File IO topic.
I did not use any simulators for my preparation. I used Java documentation (javadoc, tutorials, etc). For design
pattern topics I did get info from web search. I made a lot of notes, made a quiz card program which displayed exam topics at random (a program I came to know when I had prepared for
SCJP 5 exam), and wrote example code (and I used most of the info from that notes to develop the questions in Java Quiz Player app).