What is the main use of java development in the enterprise (java is mainly used for what development)

1-, java development is more popular, can be used in many places under.

such as:

web development, the current SSH mainstream framework can be fast and efficient development of websites.

ERP development, used to do ERP software front and back office.

Mobile game development, most of the current sub-mobile phones are android system, android with java, the development of java android applications and games is very promising.

java desktop program development, for internal use, such as simple communication tools development.

java's advantage is cross-platform and open source code, wide range of use.

2, Java applications are mainly composed of the following four major directions:

Java's desktop applications

Desktop applications generally just need JRE support is enough.

JavaWeb applications

Java's Web applications at least need to install the JDK and a web container (such as Tomcat), as well as a multi-user database, the Web application is divided into at least three tiers:

Browser tier: the browser displays the user's page

Web tier: running Servlet /JSP

DB layer: back-end database to provide data access to the Java program

Java enterprise applications

Enterprise applications are more complex, can be extended to n-tier, the simplest case will be divided into four tiers:

Browser tier: Browser to display the user's page

Client tier: Java client graphics program (or embedded device programs) to interact directly with the Web layer or EJB layer

Web layer: running Servlet/JSP

EJB layer: running EJB, complete the business logic

DB layer: back-end database, to provide data access to the Java program

Java embedded applications

Java embedded applications is a booming field, engaged in embedded development, you need to download the J2ME development kit from Sun, J2ME contains a special virtual machine for embedded devices KVM, and ordinary JDK contains a different JVM. It is also necessary to download emulators from specific embedded vendors.

Java technology, with its exceptional versatility, efficiency, platform portability, and security, is widely used in personal PCs, data centers, game consoles, scientific supercomputers, cell phones, and the Internet, as well as having the world's largest professional community of developers.