Java is a pretty complicated topic, and it’s even more confusing for a newbie who is just starting to learn about these things. Add industry jargon such as Java SE, Core Java, J2SE, JAX, MVC and you’ve got a recipe for disaster. In this article, we’ll try to simplify the important concepts to help you actually get started with the Java Enterprise Edition (JEE).
For an absolute newbie, one thing you need to understand is that Java Programming Language and Java Platform are two different things. Java Platforms such as Java Standard Edition or Java Enterprise Edition (we’ll get to these in a bit) use Java programming language. The language is the coding that is used to write programs, but the platforms are used to actually build the programs and deploy them. This is one of the main distinctions that you need to remember.
Java SE vs Java EE
Here, we aren’t going to focus on the language, but instead on the platform. There are two different types of platforms — Java SE (Standard Edition) and Java EE (Enterprise Edition). The Java SE is a basic platform that offers a range of general-purpose APIs such as Java API for the Java Class Library. These can be used to build applications and programs on the Java platform.
On the other hand, the Java EE platform is designed for companies and corporations that require a large scalable distributed system for building bulk apps. It includes additional libraries for database access (JDBC, JPA), remote method invocation (RMI), messaging (JMS), web services, XML processing, and defines standard APIs for Enterprise JavaBeans, servlets, portlets, Java Server Pages, etc.
Java Enterprise Edition
Previously known as Java 2 Platform, Enterprise Edition or J2EE, Java EE was built by Sun Microsystems in collaboration with IBM. It was originally created to simplify application development and reduce the amount of code writing by creating standard modules and components that can automate processes.
The main objective of Java EE is to simplify common problems faced by developers when it comes to building modern applications through different APIs. Some prominent APIs that come with Java EE includes Servlet, JavaServer Pages (JSP), Java Persistence API (JPA), Enterprise JavaBeans (EJB), JSP Standard Tag Library (JSTL), Java EE containers, etc.
Learning Java EE
With so much confusion surrounding this topic, learning it becomes another issue altogether. There are complete courses and tutorials that are dedicated to helping you learn this platform. However, most of them simply focus on understanding the theory. This becomes a problem later on as students finish the course and they become stuck.
To counter this problem, Eduonix has an immersive course that includes theory, practical applications, and even hands-on projects. The Projects in Enterprise Java Tutorial includes not only the theory of what is Java EE and it’s different components but you’ll also see live examples on how to use it and you’ll also build 5 projects of your own! This ensures that once the course is over, you will be able to build your own projects on the Java Platform.
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