J2EE FAQ

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Is J# a part of J2EE? Absolutely not! J# is a language developed by Microsoft. It's very similar to Java in syntax and semantics. However, that's where the similarity ends. Java can be compiled into bytecodes (class files) that run on any platform. J# can only be compiled into code that runs on Microsoft Windows platforms. J# is a part of Microsoft's .NET initiative. What are J2EE design patterns? Are there any good sources regarding them? If you're familiar with the term design patterns as it applies to object-oriented programming, you'll find that EJB design patterns apply to distributed Java programming using EJBs and other J2EE APIs. J2EE design patterns describe patterns of solutions applied to similar problems in the same context. Some good sources for EJB and J2EE design patterns are EJB Design Patterns by Floyd Marinescu; Core J2EE Patterns by Deepak Alur, Joh... (more)

J2EE FAQ

WHAT IS EJB 2.0? EJB 2.0 is the latest release of the Enterprise JavaBean specification. The major releases of the EJB specification have been 1.0, 1.1, and 2.0. EJB 2.0 adds several crucial features to version 1.1, including message-driven beans, local interfaces, an enhanced container-managed persistence, and EJB-QL (Query Language). WHAT ARE THE MAIN INTERFACES IN EJB 2.0? The figure below illustrates the class hierarchy for EJB 2.0 and the interfaces that are included. The main interfaces for EJBs are packaged under javax.ejb; they're standard extensions to the core Java class... (more)

J2EE FAQ

What is the current version of the Java 2 Enterprise Edition? The Java platform versioning is quite confusing. This is even more true since Sun split the original platform into three editions. Although it was a good step for decoupling application development, it has led to more effort in terms of version management. To answer the question, Sun released Release 1.3 of the enterprise edition (J2EE) on September 24, 2001. This is different from Release 1.3 of the JSE (Java Standard Edition), which was released more than a year ago. Currently the latest version of J2SE is 1.3.1 and t... (more)