The EJB 3 (Enterprise Java Beans version 3) specification is a core component of enterprise-level JEE (Java Platform Enterprise Edition) implementations and this improved version is set to simplify the development of Enterprise Java applications. This book covers the core elements of EJB 3 technology, exploring them in a concise manner with many supporting examples. You will gain a thorough understanding of EJB 3 technology and learn about the most important features of EJB 3 quickly. What you will learn from this book This book will teach you the core elements of EJB 3 technology. You will: .Gain a rapid introduction to the EJB 3 essentials while learning about the underlying principles .Create Entities, Message-Driven Beans, Session Beans and their clients .Look at running an EJB client from an application client container .Learn how to package and deploy an EJB .Use JQPL (Java Persistence Query Language) .Explore the entity manager interface .Learn about object/relational mapping with EJB 3 .Look at the Java Messaging API and message-driven beans .Look at transactions, interceptors, and EJB timer services .Understand how EJB 3 differs from the 2.x version .Implement EJB 3's security features Approach This book is a fast-paced tutorial that explores the key features of EJB 3 with many accompanying examples. This book is not a complete reference guide, but a concise exploration of EJB 3's core elements.

If you're an experienced programmer, you already have a rock-solid foundation for learning Java. All you need is a resource that takes your experience into account and explains Java's key principles and techniques in an intelligent, efficient way.
Java: Practical Guide for Programmers is precisely that resource. Here, you won't have to wade through hundreds of pages of overly simplistic material to learn the basics of Java programming. Instead, you get highly focused instruction in the core elements of Java 1.4, accompanied by carefully chosen examples and line-by-line analyses that are right to the point. You'll be astonished at how soon you can begin productive coding in Java, and how quickly your skills will progress.
Web resources:
Source code from the book is no longer available at
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Please press the 'Companion Page' button on the upper right side of this page to access a zip file containing it.
Sun J2SE download page
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Sun J2SE API documentation
http: //java.sun.com/j2se/1.4.1/docs/index.html
* Written expressly for people who already know a procedural or object-oriented programming language.
* Takes a concise approach designed to make the most of the experience you already have.
* Covers the core elements of Java 1.4, including language syntax, OO features, collections, exception handling, input/output, threads, event handling, and Swing components.
* Filled with incisive coding examples and line-by-line analyses.
* Via a companion Web site, provides downloadable example code and links to additional resources.