1. 17-04-2012 Modern Programming Language

2. Web Container & Web Applications Web applications are server side applications The most essential requirement for server side application development are:  A programming model and an API  Server Side runtime support  Deployment Support

3. Web Container & Web Applications To meet these requirements when building and running web applications, the j2ee specification provides the following  Java servlets and Java Server Pages  In J2EE java servlets and java server pages are called web components  Web Applications  It could be a collection of java servlets, jsp pages, helper classes, class libraries, static resources, documents and images  Web container  A web container is essentially a java runtime that provides an implementation of java servlet API and facilities for JSP pages

4.  A packaging structure and deployment descriptor  The J2EE specification defines a packaging structure for web applications. The specification also defines a deployment descriptor for each web application  The deployment descriptor is an XML file that allows the customization of web applications at deployment time

5. Java Servlets Java servlets are small, platform independent server side programs that programmatically extend the functionality of the web server The java servlet API provides a simple framework for building application on such web servers