What languages ​​can java be divided into?

JAVA language can be divided into 3 languages ​​according to application scenarios: 1. J2SE, mainly for desktop application development; 2. J2EE, mainly for enterprise-level network application development; 3. J2ME, mainly for electronic product software development.

Includes three versions: Standard Edition (J2SE), Enterprise Edition (J2EE) and Micro Edition (J2ME).

J2SE is the standard version of Java2, mainly used for desktop application software programming;

J2ME is mainly used for embedded system development, such as mobile phone and PDA programming;

J2EE is the enterprise version of Java2, mainly used for the development of distributed network programs, such as e-commerce websites and ERP systems.

Simply speaking

Standard Edition (Standard Edition) J2SE contains the classes that form the core of the Java language. For example: database connection, interface definition, input/output, network programming
Enterprise Edition (Enterprise Edition) J2EE includes classes in J2SE, and also includes classes for developing enterprise-level applications. For example: EJB, servlet, JSP, XML, transaction control
Micro Edition (Micro Edition) J2ME includes some classes in J2SE and is used for software development of consumer electronic products. For example: pagers, smart cards, mobile phones, PDAs, set-top boxes

is:

j2se java 2 simple edition for small programs
j2ee java 2 enterprise edition for large programs
j2me java 2 micro edition for mobile phone

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