1-Read this carefully "SCJP Sun Certified Programmer for
Java 5 Study Guide (Exam 310-055) (Certification Press Study Guides) by Katherine Sierra and Bert Bates" ,this book rocks..it's a very good book...
2-after you finish start sovling the 350 question of pass4sure preparation kit.
3- T A K E Y O U R T I M E.
any other questions i'll be happy to help.