Written by the inventors of the technology, The Java™ Language Specification, Third Edition, is the definitive technical reference for the Java™ programming language. If you want to know the precise meaning of the language's constructs, this is the source for you.

The book provides complete, accurate, and detailed coverage of the Java programming language. It provides full coverage of all new features added since the previous edition, including generics, annotations, asserts, autoboxing, enums, for-each loops, variable arity methods, and static import clauses.

Amazon.com® Reader Reviews (Ranked by Helpfulness)

Average Amazon.com® Rating:  Based on 15 Ratings

For the guts of Java, there's nothing better... - 2005-10-18
Reviewer Rating:
Are you the type that has to know the "why" and "how" behind how a language behaves? Then this is the book you need... The Java Language Specification, Third Edition by James Gosling, Bill Joy, Guy Steele, Gilad Bracha. Provided you're buying it for the right reason, there's nothing close to it.

Contents: Introduction; Grammars; Lexical Structure; Types, Values, and Variables; Conversions and Promotions; Names; Packages; Classes; Interfaces; Arrays; Exceptions; Execution; Binary Compatibility; Blocks and Statements; Expressions; Definite Assignment; Threads and Locks; Syntax; Index

So why do I say "for the right reason"? Because if you pick it up expecting something else, you'll be highly disappointed. This is *not* a tutorial of the language, nor is it an easy-to-read conversation or discussion of Java. Instead, it's a computer engineering level coverage of how Java is structured and how it works, from the people who wrote it. As such, you're going to find information in here that you'll have a hard time getting elsewhere. You'll find out how the nitty-gritty of how things like classes and interfaces work, and how they *should* be structured. If you're just getting started in Java, you'll likely be over your head by the second chapter. The target of this type of writing would be people who are Java journeymen, and who have gotten to the point where they need to know some of the theory behind features and structure. You'll also need a book like this if you write development tools that target the Java environment. Armed with this book and a solid background in Java, you'll be able to produce software that behaves just as developers would expect.

Don't let the depth and complexity of the material steer you away from the book if you're ready to go deeper with Java. Just don't pick up the book expecting to learn Java for the first time. There are better books out there for that purpose. But if you need to understand the guts of Java, this is it.

Must-have for the Java system developer - 2005-07-27
Reviewer Rating:
This is it, the complete and authoritative definition of the Java programming language. This edition covers the Java language up to 1.5, so it gives a full description of generics and type parameters, boxing and unboxing, enums, annotation, and all the latest. If you develop Java language tools - debuggers, compilers, etc. - you simply must have this book. If you care about Java details that much, you must have the newest edition.

The typical programmer, someone who uses Java for application development, probably won't find much of interest in this book. This isn't a programmer's how-to manual. Nearly nothing describes how to use the language features. The code samples just illustrate language syntax and subtleties. There's nearly no discussion of the Java APIs, not even the java.lang.* packages or language-dependent reflection features. These are not flaws in this reference manual - this simply isn't a book meant to serve those needs.

Despite its 650+ pages, this really is a concise, precise definition of the Java 1.5 programming language. If you care about the internals of Java or about OO lnaguages in general, then this book is for you.

//wiredweird

Brilliant - 2006-01-26
Reviewer Rating:
Just the book for the java hungry community. For those that are pressed for cash and cannot afford the book just yet you can visit the java dot sun website to download a pdf version of this book with minor cosmetic changes dealing with copyright. The integrity of the book is otherwise intact. The directory to look for is docs->books->jls. Cheers

Indispensable for the SCJP exam - 2006-12-13
Reviewer Rating:
The Java Language Specification, The Java Programming Language Guide (4th Edition), and the SJCP Study Guide for Java 5 (Sierra, Bates) are essential to passing the SJCP exam. The Java Language Specification gives you the important technical details that textbooks tend to leave out. The best way to use this book is to make small, simple test programs for each chapter or topic (the programs that the authors provide are too cryptic for my taste). This book is not a tutorial and you should have the level of knowledge aquired by studying the Java textbooks by Walter Savitch and/or Daniel Liang. It's also a good idea to have Head First Java (2nd Edition, Sierra, Bates) in your bookshelf with the others - plus anything by Cay Horstmann (Core Java I and Core Java II.)

Good Book - fast delivery - 2009-07-14
Reviewer Rating:
This is a good specification. It has clear definitions and good examples. This book is very helpful if you need to refresh your memory fast. Maybe this book doesn't have enough cross-references.For example, when they give a list of 48 keywords I expect a link to the article about this particular one following each keyword.

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