I am a Sun Certified Java associate and would like to share my knowledge and recommendations with you. I think the exam is really evaluating your IT and Java knowledge. The Sun Certified Associate (SCJA) for the Java Platform, Standard Edition, Exam Version 1.0 certification exam provides an ideal entry into an application development or a software project management career using Java technologies.
Since I am a computer engineer and has several years programming experience, becoming a SCJA will be beneficial for me in the future. I think, Sun Microsystems’ certificate exams are really prestigious in the market and help professionals to find better positions.
Lets come to my recommendations:
1- Write codes as much as possible by using NetBeans IDE (personal recommendation).
2- Study through Sun SAI (online learning services)
3- Solve lots of mock up exams and questions (You can find examples from links below)
For more information please check my SCJA Tips page
IT - Telecom Business 