I'm a 16 year old who just completed my AP Computer Science A course in school, and I was hoping on getting my OCA certification. I read through the OCA Java SE 7 Programmer I Study Guide by Finnegan and Liguori, and I have purchased the Enthuware software and have completed three tests. Here are my results: Test 1: 61% Test 2: 66% Test 3: 66%. I'm really scared that I'm not going to be able to pass. Ideas? :/
Just take your time to prepare. You'll only learn a language by writing little programs and playing around with them. Mock exam questions and code snippets in study guides are a good starting point. And then it's up to you: what happens if I assign another access modifier to a method or class, what happens if I change the scope/type of a variable,...
You only learn a language by programming, not by reading a book (although that's a good guide to know what you have to learn to pass the exam).