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Welcome to Merit Campus. Merit Campus is a website which helps in learning and improving your programming skills using the Java programming language

A few weeks back, I wrote a blog entry lamenting the attitude toward IDEs in the Scala community. A few people told me that the tooling situation was better than I'd implied, so I thought I'd spend a bit of time looking at using Scala (and Lift specifically) in Eclipse. I think the situation is still a ways away from the tooling situation for Java, but it is actually quite good, and I wanted to post a quick tutorial for those interested in developing Lift in Eclipse. Prerequisites This post assumes that you already have Scala 2.8 final and Eclipse 3.6 on your system. For Eclipse, I recommend upping the Xmx setting if you haven't already - I had issues when I had multiple Lift projects imported with Xmx set to 386. Also, this tutorial is going to use Maven, not SBT. SBT may be a better build tool for Scala projects, but I'm not sure how well it works with m2eclipse - I'm going to play with that more later. I also assume you know how to install plugins into Eclipse - I will create a more in-depth screencast for doing all of this if there is enough interest.

Tutorial and Example on how to integrate Java, Spring, Hibernate and MySQL

It is an open-source testing framework for java programmers. The java programmer can create test cases and test his/her own code. It is one of the unit testing framework. Current version is junit4. To perform unit testing, we need to create test cases.

"Apache Shiro is a powerful and easy-to-use Java security framework that performs authentication, authorization, cryptography, and session management. With Shiro's easy-to-understand API, you can quickly and easily secure any application - from the smallest mobile applications to the largest web and enterprise applications. We recommend you start with the 10 Minute Tutorial which gives you a feel for Shiro and its API. Then feel free to get started using Shiro in your own applications."

JAXB stands for Java Architecture for XML Binding. It provides mechanism to marshal (write) java objects into XML and unmarshal (read) XML into object. Simply, you can say it is used to convert java object into xml and vice-versa.

Sample of using Hibernate Annotations by reducing XML configuration files thus making it simpler to define required metadata directly into our Java code. When using annotations, we no longer need the additional mapping file (*.hbm.xml). The metadata for the ORM is specified in the individual classes.

Great website for begginers in java (and not only). It goes from the very beginning to intermediate topics and simple game development.

This tutorial covers adding validations to forms during submission using Validator interface from Spring. This is part of the Spring MVC tutorial series.

"This chapter introduces the Expression Language (also referred to as the EL), which provides an important mechanism for enabling the presentation layer (web pages) to communicate with the application logic (backing beans). The EL is used by both JavaServer Faces technology and JavaServer Pages (JSP) technology. The EL represents a union of the expression languages offered by JavaServer Faces technology and JSP technology."

The NumberFormatException is thrown when we try to convert a string into a numeric value such as float or integer, but the format of the input string is not appropriate or illegal.

Sample tutorial on how of Spring Dependency Injection and Inversion of Control using Constructor Injection and Setter Injection

We conduct various online competitions at state level, district level and at college level. We also conduct spot events at colleges.

AJAX allows you to send only important information to the server not the entire page. So only valuable data from the client side is routed to the server side. It makes your application interactive and faster.

"At this point, the only source of useful overview documentation for the Common Navigator are the excellent tutorials at Michael Elder's (the author of the CN) blog. Soon I hope to get some of this transferred into the Eclipse Plugin Developer's Guide. RCP applications can quickly and easily use the CN to show the resources in the workspace. This assumes that your RCP application uses resources (which is another discussion). The CN can also be used for non-resource RCP applications, in that case, these instructions don't apply, as the objects treated by the CN have to be created directly by the RCP application. If you are planning to use the CN in an RCP application that uses resources, there are 3 (2 of which are completely undocumented) things you must do:"

ECF is a framework for building distributed servers, applications, and tools. It provides a modular implementation of the OSGi 4.2 Remote Services standard, along with support for REST-based and SOAP-based remote services, and asynchronous messaging for remote services. See the ECF Wiki for examples, tutorials, other documentation, as well as plans and efforts currently underway for future releases.

This post is for those who are new to Spring Framework. This covers the two basic Spring scopes, the singleton and prototype.