Why is Java separated into Core Java and Enterprise Java (Java EE)?

The basic concept in Java is known as core java, it comprises the single tire architecture, util, lang, art, io and net packages. Core java also covers the concept of oops, wrapper class, special operator, datatypes, exception handling, stack, linked list, queue, array and list. Core java means standalone Java application but advanced java is the next level of java programming. It is two tier architecture i.e. client and server. Advance java programming covers the swings, socket, AWT, thread concept as well as collection object and classes. Advance java is used for web based application and enterprise application.

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Hello, The Java language is categorized based on platforms: Java SE (Java Standard Edition or Core Java ) - APIs used to develop desktop based applications. An antivirus software installed on your PC, a Game installed on your PC are best examples of desktop based applications. I have developed so many desktop Apps using Java SE. Few samples : Test Generator Software Java EE (Java Enterprise Edition) - APIs and components used to develop web based enterprise applications. The infrastructure comes with one more Java EE containers to run your Java EE App. The application which are accessed on your browser are called web based applications. ava ME(Java Micro Edition) - APIs and components used to develop mobile based applications. You can find Java games from your mobile store.

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JAVA is a computer software that provides a system for developing application software and deploying it in a cross-platform computing environment. Java is used in a wide variety of computing platforms from embedded devices and mobile phones to enterprise servers and supercomputers. Java is segregated into three libraries. Java SE, Java EE, Java ME. These 3 libraries are aimed at solving different problems, typically you would choose the smallest/smartest and efficient library to solve a business requirement in order to not overcomplicate a solution. Java ME - Embedded JAVA is aimed at running on hardware with very little resources available. These would usually be the advanced reduced instruction set computer based processors on boards such as the RaspberryPI. Java SE: Standard Edition is a set of libraries that provide a good starting point for any application, typically desktop based. Java SE is also a good option for small services or web-based applications that don't need to be deployed to servlet containers such as Tomcat, JBoss or Glassfish. Instead of using an embedded server such as Jetty is quite popular to keep things simple and using low resources. Java EE: Enterprise Java is aimed at solving big problems. The typical usage here is high volume, scalable web or service-based applications that make use of features such as transaction handling, batch processing, caching, messaging and much more that are available. In conclusion, the split is there to provide options for different problems, you wouldn't want the full force of Java EE behind a simple little desktop application, and you wouldn't want to add loads of libraries to a service-based application that requires a lot of features already provided by Java EE.

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