Esper is a lightweight kernel written in Java which is fully embeddable into any Java process. It enables the development of Event-Driven Applications in Java.

Java tutorial with large example library. New tasks and examples added weekly or monthly.

The tutorial includes lessons from the beginning to advanced level.

Java tutorials - basic tutorial, servlets, and JDBC. Example code, tips and resources.

The Apache Axis2 architecture assumes neither one message exchange pattern, nor synchronous/asynchronous behavior. This article explains messaging concepts and how Axis2 can be used to implement several well-known messaging scenarios from just two bas...

Koen Vervloesem shows how you can use Ant, the popular Java build utility, to run diagnostics on a remote system and collect troubleshooting information automatically, instead of figuring things out over the phone.

Learn how to connect to Amazon Web Services (AWS) with a servlet or JSP. Provides step by step instructions for using the Apache Axis open source SOAP toolkit to create a Java-SOAP package for interacting with AWS.

Benefits of using Java, setting up, simple programming, Object Oriented Basics, and designing applications using OO.

This tutorial introduces how to use Java Database Connectivity to interface to web databases. Suitable for webmasters and web developers with little or no database experience.

S. E. Morris pushes the client-side features of the Google Web Toolkit by creating client-only apps that use scrolling, animation, and mouse tracking.