what does java do

What does java do?

java is a computer programming language

Java is an object-oriented programming language that not only absorbs the various advantages of the C language, but also abandons the It is difficult to understand concepts such as multiple inheritance and pointers, so the Java language has two characteristics: powerful and simple to use. As a representative of static object-oriented programming languages, Java language perfectly implements object-oriented theory and allows programmers to perform complex programming with an elegant way of thinking.

Java has the characteristics of simplicity, object-oriented, distributed, robustness, security, platform independence and portability, multi-threading, and dynamics. Java can write desktop applications, Web applications, distributed systems and embedded system applications, etc.

When editing and running a Java program, these four aspects need to be involved at the same time. Use text editing software or an integrated development environment to define different classes in Java source files, access the resource system by calling methods in the classes, compile the source files to generate a binary intermediate code, and store it in the class file.

Then the class file is run by running the Java virtual machine corresponding to the operating system platform environment, the bytecode generated by the compilation is executed, and the methods implemented in the class file are called to satisfy the Java API call of the program.

Extended information:

Development Prospects

The birth and widespread application of computers have promoted the development of the IT field, but computers in the 21st century are no longer access INTERNET is the only way.

Various types of more information-based electronic products have gradually entered the IT field, promoting the development of the PC era. Due to the rapid increase in various consumption information, traditional client computers are not as good as PCs in all aspects. The development of PCs has also set higher standards for server application management systems.

Java language fully meets the conditions of PC. It has made breakthroughs and innovations in reducing memory, running directly in various electronic products, being recognized by any device on the network, making full use of network resources, etc., and has made breakthroughs and innovations for The development of the PC era has created strong conditions.

With the development of the IT industry, computer applications in many enterprises are also transforming. The computer models used in enterprises are gradually becoming smaller in size with smaller clients, larger servers, and larger database capacity. Shift in the direction of corresponding increase.

In addition, coupled with the unique characteristics of the Java language and its advantages in the development of applications in various servers, the enterprise version of J2SE provides a good platform for the application of computer mode in the enterprise environment. .

Java language has designed Java servlet and SQL-J technology, as well as JSP technology to be closely connected with the database. With the development of JSP technology, the network application of JAVA language is more practical, more efficient and faster, and it has become a commonly used technology in the IT industry.

JSP uses Java language as its server-side language, and combines JAVA SCRIPT and other client languages ​​to make it more convenient for web browsers to display.

In terms of distance online teaching, JAVA has changed the traditional Web page form based on Microsoft Front Page or HTML language, making online distance teaching more dynamic, convenient, and secure, enriching Improve the means and coverage of online distance teaching.

Java Contribution and Influence

The Java language is a computer language program that develops rapidly with the times. It profoundly demonstrates the essence of programming, coupled with its concise and rigorous structure and concise Grammar writing provides guarantee for its future development and maintenance. Because it provides network application support and multimedia access, it will promote Web applications on the Internet and corporate networks.

In addition, in order to maintain the growth of Java and promote the participation of the Java community, Sun announced the opening of the Java core source code at the Java One Developer Conference to encourage more people to participate in Java community activities.

With support from the Java community and global technology partners such as IBM, Java technology continues to play a strong and important role in innovation and social progress, and as its programming difficulty decreases, more professionals The staff will focus on the writing of Java language and the design of framework structure.

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