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This step by step tutorial will show you how to build a simple Session EJB. It will then deploy this EJB on JBoss Server and call it from a JSP page running on Tomcat. You will learn how to call an EJB running on a separate EJB cotainer from a JSP page running on a different WEB container. Every step has been explained in detail.

Both provide key-value access to data. The Hashtable is one of the original collection classes in Java. HashMap is part of the new Collections Framework, added with Java 2, v1.2. The key difference between the two is that access to the Hashtable is synchronized on the table while access to the HashMap isn't. You can add it, but it isn't there by default.

An article on inserting records into the database with Java Servlets. Every step from establishing a Connection to executing the INSERT SQL query is explained in detail. Online demo available.

A tutorial on how to create and execute JDBC SQL Statements and display records from a table in a MySQL Database. Also covers topics like creating databases and tables in MySQL. All code is explained in detail.

In this guide, I will try to explain you how you can run examples for J2EE tutorials. There are many ways you can do this, here we will be using the examples in NetBeans IDE which is one of the most powerful open source Java integrated development environments available.

Tutorial and sample codes to calculate the distance between two locations. Free sample source codes in PHP, ASP, ColdFusion, C/C++, C#, Java, Perl, Visual Basic and Javascript. Longitude and latitude for United States ZIP Code and Canadian Postal Code are available in database subscription.

In this first part of a series on developing Java servlets, this tutorial shows how to create a basic servlet. It includes information about downloading the Java Servlet Development Kit from Sun.

Sample chapter from "EJB 2.1 Kick Start" on installing an application server to developing and deploying an EJB on it.

Java programming language was primarily developed to deal with embedded applications. But with the introduction of Swing and other user interface utilities to Java, it made its mark in desktop applications too. Now the trend is to use Java technology in developing large web and enterprise applications. Java is more focused on web then desktop applications. But, in this article, we are going to discuss how useful Java is as a development technology for stand alone desktop application development in present scenario.

Annotations, a new feature in J2SE 5.0 (Tiger), brings a much-needed metadata facility to the core Java language. In this first of a two-part series, author Brett McLaughlin explains why metadata is so useful, introduces you to annotations in the Java language, and delves into Tiger's built-in annotations. Part 2 covers custom annotations.

JAR Class Finder is a WSAD/Eclipse plug-in utility for finding JAR files containing a given class for the Java build path of a project and for helping to fix NoClassDefFound exceptions. This utility helps users to quickly and easily resolve ClassDefNotFound exceptions, which commonly occur during run time. It can also be used to avoid getting such errors if used before run time.

If your company already relies on multitiered enterprise Java applications, then you may be closer to a wireless future than you think. By outlining a sample application, this article shows you how to connect your existing enterprise Java infrastructure to a wireless network with minimal investment in equipment and labor. Using existing EJBs, modified servlets, and new WML and WMLScript pages makes the process a snap.

This sample of JSP file, first handles all posted data from a web form and write to a text file. We have used Tomcat Server to run our sample code. You could easily edit the source code to use in your application.

This article describes everything you need to know to send emails using JSP pages. Also describes better practices for encapsulating re-usable code in JavaBeans. Online demo available.

An article on exception handling in JSP pages. Describes how to catch exceptional events and display a useful message to the user. Online demo available.

Serialization is a way of flattening, pickling, sizzling, serializing, or freeze-drying Objects so that they can be stored on disk, and later read back and reconstituted, with all the links between Objects intact Object serialization is the process of saving an object's state to a sequence of bytes, as well as the process of rebuilding those bytes into a live object at some future time

JTurtle is a free educational programming tutor. It uses Java Bean Shell as a scripting language. BeanShell is extremely easy to use for procedural programming, but it can also be used to teach Object Oriented programming as the full Java programming language is accessible. Notable Features: * Uses BeanShell scripting which allows for procedural programming or full on Object Oriented Java. * Has the ability to stop running scripts.(useful to kill infinite loops in scripts) * Images can be saved as PNG files * Syntax hilighting via jedit's JEditPane component(Java, BeanShell, & JTurtle API) * JTurtle Javadoc viewable from interface. * GPL license

This generic Swing architecture eases your UI development by integrating intelligent data with Swing components. You can use the iData architecture to create a central repository of data within your application. By doing so, you'll more fully separate data from presentation and produce code that's cleaner and easier to maintain. This article explains how to use the iData technique to ease complex GUI development.

An article on managing sessions. First describes what is a session? how to identify a user across multiple pages and how to manage sessions using Java Servlets. Online demo available.

The problem of system security starts with discovering the identity of the user on the other end of the communications link. This article discusses three familiar approaches for identifying users, highlights their strengths and weaknesses (alone and in combinations), and provides some examples of each.