Title: Essential
Review: I have half a shelf full of Java books, and a folder full of online bookmarks, but after a half dozen frustrating searches through the others, I've learned to always look here first for a question about the core language. This book doesn't cover the non-core packages, and it doesn't cover the newer (Java 2) extensions, but it is indispensible for what it does cover. Plus, it has the most interesting index of any technical book I've seen.
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