Yes, it would be helpful. It doesn't cover most of what you need, and is not an appropriate guide for the topics on the exam, but it DOES cover some areas related to performance and memory use, and these topics ARE on the exam. So, it would not hurt to use this book, and I recommend it anyway. But if you are trying to learn MIDP 2.0, and can get only one book, I recommend the one by Jonathon Knudsen (see my other posts on this). Most importantly, you need the specs!
posted 13 years ago
The style guide is an interesting book. It selectively explains parts of the spec whether they think could cause confusion. I find it an interesting read. But for the example, you need to study the spec systematically.