The Java Language Specification
by James Gosling, Bill Joy, Guy Steele, Gilad Bracha
Publisher: Prentice Hall PTR 2005
Number of pages: 684
Written by the inventors of the technology, The Java Language Specification is the definitive technical reference for the Java programming language. It provides complete, accurate, and detailed coverage of the entire language and its syntax. If you want to know the precise meaning of Java's constructs, this is the source for you.
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by Frank Cohen - Prentice Hall PTR
Highly recommended for advanced developers and IT managers. This book is an excellent guide to testing Web applications and Web services. It will benefit software developers, beginning QA techs, and the experienced coders and testers.
by Bruce Tate - O'Reilly Media, Inc.
Bruce Tate describes the characteristics of alternative languages, likely successors to Java. The book will teach you a few new languages and help you start building new skills, or you can use the introduced techniques to improve your work in Java.
by Henry Coles, et al. - GitBook
This book is an attempt to capture what good Java code looks like and the practices that help produce it. Tis document is intended for anyone, from developers writing Java for the first time through to seasoned technical leads serving multiple teams.
by Jeff Heaton - Heaton Research, Inc.
Java allows you to program HTTP directly. These programs, which are called bots, can collect information or automate common web programming tasks. This book presents a collection of very reusable recipes for Java bot programming.