Java Editions and Difference between Java SE VS Java EE.

Java Editions

Java concepts are divided into 4 types.

1. Java ME
2. Java SE
3. Java EE
4. Java FX

Java ME:

• Java EE concepts are used for developing software for consumer electronics devices such as mobiles.

Java SE: 

• Java SE concepts are used for developing software with standalone CUI or GUI applications.

Java FX: 

• JavaFX is intended to replace Swing as the standard GUI library for Java SE, JavaFX has support for desktop computers and web browsers on Microsoft Windows, Linux, and MAC OS.

Java EE: 

• Java EE concepts are used for developing web and enterprise Applications.
• Java EE is divided into 3 editions in 1.2 version after introducing Servlet and JSP.
• Initially these editions are called J2ME, J2SE and J2EE.
• The number to represent the version number in which editions are introduced.
• Since this number 2 is confusing as it is not same with java version number, in Java 5 SUN decided to drop the version number ‘2’ from edition name.
• From Java 5 onwards they have renamed edition names as Java ME, Java SE and Java EE.

Difference between Java SE VS Java EE.

	Java SE	Java EE
1	Used for developing standalone applications.	Used for developing internal & enterprise applications.
2	We will get Java SE API by installing JDK/JRE.	We will get Java EE API by installing server software.
3	We should execute Java SE based application using Java command from command prompt using main method class	We should execute Java EE based application using url from browser software using Servlet.
4	To execute Java SE based Application just JDK/JRE software is sufficient.	To execute Java EE based application we must have JDK and server software.
5	From java EE based applications output should be printed on console using System.out.print() or System.out.println() method.	From Java EE based applications we must print output on browser using out.println() method.
6	To execute Java SE application, We can save it in any folder in hard desk. Then at command prompt by changing path to our project folder path we can run it.	But we must save Java EE application inside server software directory. For example: In tomcat server we must save it inside “webapp” directory then only server software can execute Java EE application(Servlet, JSP or EJB).
7.	Java SE has the following API’s 1       Applet 2.       AWT 3.       RMI 4.       JDBC 5.       Swing 6.       Collections 7.       XML Binding 8.       Java FX (Merged to Java SE 8) 9.       Java 8 Streaming and etc…	Java EE has the following API’s 1.       Servlet 2.       Websocket 3.       Java Faces 4.       Dependency injection 5.       EJB 6.       Persistence 7.       Transaction 8.       JMS 9.       Batch API etc…