This exam is all about the basics and so, to be honest, every topic on this exam should be covered thoroughly. One may manage to pass this exam without being too thorough but they will have trouble when they go for the Professional and the Expert level exams.
"Tricky" means different to different people. Some find the constructor business (chaining, default constructors, usage of super and such) to be tricky while some find the new Date API to be tricky Both the topics require more time and effort than others to learn.
posted 2 years ago
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Building a Better World in your Backyard by Paul Wheaton and Shawn Klassen-Koop