Top 10 EJB Interview Question and Answer asked in Java J2EE Interviews 10 EJB Interview Questions and Answer from my collection of interview questions. I have been sharing interview questions on various topics like Singleton interview questions, serialization interview questions, and most recently Spring interview questions. No doubt these questions are very important for performing better in J2EE and EJB interviews but also they open a new path for learning as you may find some concepts new even while revising your knowledge in EJB. EJB interviews have always been tough because its difficult to find people who have hands-on experience on Enterprise Java Beans (EJB) and most of the guys either have worked only on sample projects and are not aware of critical functionalities like distributed transaction management, container-managed persistence, and various other services which EJB provides. --- Java, Unix, Tibco RV and FIX Protocol Tutorial

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Difference between Struts 1 and Struts 2 Web Development Framework I had worked previously on Struts 1 but never touched Struts 2, especially since Spring MVC was there to take the leading role. Recently one of my friends ask me to help with Struts2, which leads me to look on the Struts2 framework from start. First thing I wanted to find out differences between Struts 1 and Struts 2 framework, because in my experience, if you have worked in the previous version looking differences between two versions of Struts can quickly help to find, what changes and What are the new features, concepts and improvement is offered by Struts 2. Also the difference between Struts 1 and Struts 2 is a good candidate to include in my list of Struts interview questions for quick revision. --- Java, Unix, Tibco RV and FIX Protocol Tutorial

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Difference between SendRedirect() and Forward() in JSP Servlet? Example The difference between SendRedirect and forward is one of the classical interview questions asked during a java web developer interview. This is not just applicable for servlet but also for JSP in which we can use forward action or call sendRedirect() method from scriptlet. Before examining the difference between forward and SendRedirect let’s see what send Redirect method and the forward method does. SendRedirect ():   This method is declared in HttpServletResponse Interface. Signature: void sendRedirect(String url) --- Java, Unix, Tibco RV and FIX Protocol Tutorial

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What is load-on-startup servlet element in web.xml with Example? load-on-startup is an element that appears inside tag in web.xml.4 years back load-on-startup was a very popular servlet interview question because not many Java J2EE developer was familiar with this element and how load-on-startup works inside a servlet container like tomcat or WebSphere. In this J2EE Tutorial, we will see what is a load on startup, how to use the load-on-startup element, and what are different values we can configure for load-On-Startup inside web.xml. --- Java, Unix, Tibco RV and FIX Protocol Tutorial

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Top 10 Servlet Interview Question Answers for Java JEE Developers This time its servlet interview questions, I was thinking about what to pick for my interview series and then I thought about J2EE and Servlet is my favorite in that space. Servlet is an important part of any J2EE development and serves as a Controller on many web MVC frameworks and that’s why it’s quite popular on J2EE interviews. These Servlet questions are based on my experience as well as collected by friends and colleague and they are not only good for interview practice but also shows a new direction of learning for anyone who is not very familiar with servlet technology. --- Java, Unix, Tibco RV and FIX Protocol Tutorial

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Difference between URL-rewriting URL-encoding in Servlet JSP? Answer URL-rewriting vs URL-encoding in Servlet JSP The main difference between URL-rewriting and URL-encoding is that URL-rewriting is a technique to maintain user session if cookies are not enabled on the client browser or browser doesn't support cookie while URL-encoding is a way to pass a string to the server containing special characters by converting special characters like space into some other characters like +. People often confuse between URL encoding and URL rewriting because of there names which sound quite similar for new guys but functionality wise they are totally different to each other, Also servlet encodeURL() method adds more confusion because its sounds like its used for URL Encoding but indeed used for URL Rewriting. --- Java, Unix, Tibco RV and FIX Protocol Tutorial

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5 JSTL Core IF Tag Examples in JSP - Tutorial  or if the tag of JSTL core tag library in JSP is one of the most versatile and useful tags. JSTL if tag allows you  to test for a condition, like checking for a particular parameter in requestScope, sessionScope, or pageScope. You can also check any parameter in request parameters and headers or can check for a variable in JSP page using tag. JSTL if tag helps a lot to reduce the amount of Java code from JSP  page and if used, along with expression language JSTL core tag library, can remove almost all Java code from JSP files. Earlier we have seen examples of JSTL foreach tag and JSTL core set tag and this JSP JSTL tutorial is based on if the tag of the JSTL core tag library. --- Java, Unix, Tibco RV and FIX Protocol Tutorial

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What is GET and POST method in HTTP and HTTPS Protocol? Answer GET and POST method in HTTP and HTTPS are two most popular methods used to transfer data from client to server using  HTTP (Hyper Text Transfer Protocol)  protocol. Both GET and POST can be used to send requests and receive response but there are significant differences between them. The difference between GET and POST in HTTP or HTTPS is also a popular interview question in JSP and any web programming interview. Since HTML is independent of any web server technology like Java, ASP or PHP and HTTP is core protocol in space of the internet, the importance of a clear understanding of GET and POST method can not be ignored. --- Java, Unix, Tibco RV and FIX Protocol Tutorial

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JSTL Set tag examples or in JSP – Java J2EE Tutorial JSTL set tag or also called as JSTL Core tag library is a good replacement of jsp action which lacks lot of functionality and only allow you to set bean property. you can not set Map's key-value or create a scoped variable by using . jstl tag allows you to do all the stuff related to setting or creating variables or attributes. by using JSTL tag you can : --- Java, Unix, Tibco RV and FIX Protocol Tutorial

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