I passed the exam on June 30. I was very nervous before the exam, but after taking several questions, I calmed down. The exam was not as difficult as I imagine. In fact, the questions that I had were pretty easy. It took me 80 minutes to go through all the questions, then I went back to finish the two questions that I left blank and double checked the marked questions. I didn't take a lot of mock exams. I read the complete Java certificate guide twice, write a lot of small codes (about 150), go through most of the questions posted on JavaRanch everyday. Thank you JavaRanch and good luck everybody!