What is the difference between j2ee and java?

What is java?

Java is a programming language. Java not only has the advantages of C, but also gives up some difficult-to-understand nouns. Currently, Java is an object-oriented representative. The Java language is simple, easy to use, and functional. It is powerful, so many programmers use Java to program desktop programs and embedded systems.

Java is an object-oriented programming language that can write cross-platform applications. Java technology has excellent versatility, efficiency, platform portability and security. It is widely used in PCs, data centers, game consoles, scientific supercomputers, mobile phones and the Internet. It also has the largest professional community of developers in the world.

What is j2ee?

J2EE is a set of technical architecture that is completely different from traditional application development. It contains many components and can mainly simplify and standardize the development and deployment of application systems, thereby improving portability, security and reuse value. .

The core of J2EE is a set of technical specifications and guidelines. The various components, service architectures and technical levels included in it all have common standards and specifications, allowing various platforms that follow the J2EE architecture to There is good compatibility, which solves the dilemma that in the past, the information products used by the enterprise's back-end were incompatible with each other, and it was difficult to communicate with each other inside or outside the enterprise.

The difference between J2EE components and "standard" Java classes is that they are assembled in a J2EE application, have a fixed format and comply with J2EE specifications, and are managed by the J2EE server. The J2EE specification defines J2EE components as follows: client applications and applets are components that run on the client; Java Servlets and Java Server Pages (JSP) are Web components that run on the server; Enterprise Java Bean (EJB) components are components that run on the server end business components.

What is the difference between j2ee and java?

java is a high-level computer language

J2EE is a standard and a popular technical architecture.

J2EE, J2ME, and J2SE together constitute the Java2 platform, and they are all implemented in the java language.

An inappropriate metaphor is like the relationship between English and English literature.

java contains three major branches:

1. J2SE --java standard edition--standard version, which completes the development of desktop applications and is the basis for the other two ; Generally an application located on the client side;

2. J2EE --java Enterprise Editon -- Generally an application for a server-side program, developing applications in an enterprise environment, mainly for web program development;

3. J2ME--java Micro edition--generally located in embedded applications, developing electronic consumer products and embedded devices, such as programs in mobile phones;, such as mobile games

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