Top 5 free Java ebooks

1. The Java Language Specification, Third Edition

Download : http://java.sun.com/docs/books/jls/
Author : James Gosling, Bill Joy, Guy Steele, Gilad Bracha
Description : The Java Language Specification, Third Edition - 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 in since the previous edition including generics, annotations, asserts, autoboxing, enums, for each loops, variable arity methods and static import clauses.

2. Thinking in Java, 3rd Edition

Download : http://www.mindviewinc.com/Books/downloads.html
Author : Bruce Eckel
Description : Perfect for migrating to Java from a fellow object-oriented language (such as C++), the second edition of Thinking in Java continues the earlier version's thoughtful approach to learning Java inside and out, while also bringing it up to speed with some of the latest in Java 2 features. This massive tutorial covers many of the nooks and crannies of the language, which is of great value in the programming world.

Note
Thinking in Java, 3rd edition is still free, but you need to pay for the latest 4th edition.

3. The Java Tutorial 4th Edition

Download : http://download.oracle.com/javase/tutorial/
Author : Sharon Zakhour, Scott Hommel, Jacob Royal, Isaac Rabinovitch, Tom Risser, Mark Hoeber
Description : Accurate and up-to-date Java tutorials, and you can download the entire Java tutorials in bundle.

4. Core Servlets and JavaServer Pages, Second Edition

Download : http://pdf.coreservlets.com/
Author : Marty Hall and Larry Brown
Description : Complete and detailed coverage of using Servlets and JavaServer Pages (JSP).

5. Introduction to Programming Using Java, Sixth Edition

Download : http://math.hws.edu/javanotes/
Author : David J. Eck
Description : Good book for beginning programmers, and might also be useful for experienced programmers.

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