JavaBeat

As we all know what an inner class is so lets try to know few more rules about Inner Classes. Inner classes cannot have static members. only static final variables. Interfaces are never inner. Static classes are not inner classes. Inner classes may inherit static members that are not compile-time constants even though they may [...]

What is Abstract As we all know,An abstract method declaration introduces the method as a member, providing its signature, return type, and throws clause , but does not provide an implementation. Every subclass of A that is not abstract must provide an implementation for method, or a compile-time error occurs. JLS states: An instance method [...]

Here I am documenting some best practices can be followed during JSF project development. Open Source Components 1. Use myfaces or Sun RI. It doesn’t matter which one you use because both comes from Sun. Sun offers myfaces through open-source community. 2. Use richfaces to get rich look quicker. Click here to go to demo [...]

ThreadLocal is one of the rarely used class in Java. I found it is one of the powerful class in Java on multi-threaded programming. In multi threaded program generally we use session object to track the current users information. These information is passed to various method to retrieve desired value. For example in Struts execute [...]

For long time I had a question “why Sun introduced Interface concept instead of C++ style of multiple inheritance?“. I did googling but many articles and forums talks about difference between abstract class and Interface not why Interface concept required in Java. After extensive search and analysis I came to know the reason behind the [...]

This article explains how to install the tomcat 6.0 server in your desktop. This is pretty simple and since moss of the java beginners find its difficult to get started with the web development. Because tomcat is the mostly recommended web server for learning JSP and Servlets basics. Tomcat is also the Reference Implementation(RI) for [...]