What is J2EE used for ?
J2EE Stands for Java 2 Enterprise Edition. J2EE is an environment for developing and deploying enterprise applications. J2EE specification is defined by Sun Microsystems Inc. The J2EE platform is one of the best platform for the development and deployment of enterprise applications. The J2EE platform is consists of a set of services, application programming interfaces (APIs), and protocols, which provides the functionality necessary for developing multi-tiered, web-based applications. You can download the J2EE SDK and development tools from Oracle Technology Network for Java Developers.
How do I use the eclipse for j2ee?
Using Eclipse IDE for J2EE development is quite easy. You just need to go Eclipse - The Eclipse Foundation open source community website. and download latest version of Java EE IDE in category of IDE and tools on the website.Here the point is to consider that use compatible Java development kit that means jdk according to downloaded IDE of Eclipse.After that you need to download Apache tomcat server on the website of Welcome to The Apache Software Foundation! .. The same point here is also to keep in mind that Tomcat server must be compatible with Jdk.If you have already installed Oracle database in your system change the port no of Tomcat server as 8080 to any like 8808..Now go-to Eclipse IDE and create dynamic web application and run its as Java server.It will work .. Enjoy coding.. for any kind of help feel free to connect with me anytime..
What is the use of learning J2EE?
Learn J2EE if you want to work on very large legacy enterprise applications (not just for the Web). J2EE isn't really a framework, it's more of a platform that claims it makes developing large enterprise applications for deployment in thin client environments. I find it actually fault convoluted and bloated. Yes, there is better stuff out there now for Web Development in Java. If you want to stay with Java, I like the Play framework. Other popular ones are Spring MVC, Struts 2, and JSF.If you aren't married to Java, Ruby on Rails (RoR) is really nice if you don't need to do any responsive database updates. Django is basically the Python version of RoR (although I think Django is older).
Java /J2ee Design Patterns, Which are used?
There are plenty of resources on the java website to assist you with your question. A common pattern in the j2ee world is the service locator pattern. If you go to the website and search for that pattern you will find at least one white paper (I have read it a long time ago) that explains the pattern and the flow of events for a transaction. For patterns past the server(business) tier and on into the persistence layer just do a search on persistence strategy or persistence pattern. One persistence (database if you wish) technology is Hibernate. I am not an "EJB" (not the same as J2EE) fan, but Entity Beans are another.
Can I learn j2ee on my own?
Yes, Of course everyone can learn any language or technology on their own. Particular for J2EE you need to have a knowledge of Core Java, Collection Framework, Web Architecture, Knowledge of database will add ease of understanding. First thing you will need is some resources that will guide you how you can start it. Oracle provides online documentation through which you can start learning Java's Enterprise Environment, structure of it. Here is a link : The Java EE 6 Tutorial.Step 1: Learn the structure of java's web environment, purpose and requirements of it.Step 2: There are different technologies which J2EE provides like Java Bean, JSF, JSP, Servlets. take overview of it.Step 3 : Take overview of web services.After having completed with these three steps. You are now capable of start programming. I suggest you to go with the flow. J2EE is a combination of several useful technologies. Be determined. J2EE will give you a new perspective to work in java.
Are J2EE and Java Advanced the same?
Advanced Java and J2EE (now called as Java EE) are two different streams. Advanced Java refers to Java SE.For the sake of convenience (?), Java SE has been broken down into two main sections - Core Java and Advanced Java. This has been done based upon Spiral Methodology, to make it easier for people to learn. Instead of covering everything in Java SE using a "Big Bang" approach, we learn Java gradually, we start with concepts and cover more advancendtopics as we move up spirally. What is covered in each section depends upon an individual's requirement and wisdom (and hence the ? above. For me Java is Java - there is no core no advanced. You should know the basics of Java - OOPS, Syntax, conventions, compiling, executing, tools and then which APIs from the standard Java you learn depends upon your need. I would rather have Java as Java SE(Standard Edition), Java EE (Enterprise Edition), Java ME (Micro Edition). More on this maybe later.Coming back to the question.Java SE - Covers topics for laying Java foundation and developing desktop applications and is broken down as Core and Advanced.Normally, Core Java is the foundation and includes the basics of Java programming - OOPS, syntax, conventions, compiling, executing, programming constructs (conditional, loops), data types, I/O,String, Arrays, Exception handling etc. - the minimum you should know about Java to start working and build simple applications.Advanced Java includes JDBC, Collections (I would rather have these as part of Core), Networking, Multi-threading,RMI,Swing (also JavaFX) etc.- basically all advanced topics and what you learn depends upon your needs.Java EE is for built upon Java SE and includes APIs for building web-based and distributed applications. It covers Servlets, JSP, JSF, EJB, JMS......Java ME is Java for embedded devices - mobile, IoT (Internet of Things), PDAs etc.Know more from Java Software | Oracle. Hope this answers your question. Feel free to ask if there is any doubt.
What does 2 stand for in J2EE?
Earlier when java got updated to 1.2 version, this naming convention came in to picture, like J2SE, J2EE etc.But this is not followed post java version 5 update, so instead of the old naming, you can use JSE/JEE… 5/6/7/8…Hope it helps.
What platforms can we use to build an enterprise web application?
I have to decide the technology platforms for building a web based enterprise software. I am looking for platforms which are openly available to minimise the project cost. I chose the database as MySQL, could you please suggest any forms and reports development environment which can be integrated with MySQL as backend and use it for online applications?