Java features include simplicity, object-oriented, distributed, robustness, security, platform independence and portability, multi-threading, dynamics, etc. Java can write desktop applications, Web applications, distribution formal systems and embedded system applications, etc.

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Java is an object-oriented programming language, which not only absorbs C It not only takes advantage of the various advantages of the language, but also abandons the concepts such as multiple inheritance and pointers that are difficult to understand in C. Therefore, the Java language has two characteristics: powerful functions and simple and easy 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.

Java features:

1. Cross-platform: Cross-platform means that the software can run normally in any computer environment without being constrained by computer hardware and operating systems. The virtual machine that comes with Java achieves cross-platform very well. The binary bytecode generated after the Java source program code is compiled is platform-independent, but a machine code instruction that can be recognized by the Java virtual machine. The Java virtual machine provides a bytecode to the underlying hardware platform and operating system. Barrier makes the Java language cross-platform.

2, Simple: Java language is a very simple "object-oriented" programming language. The Java language omits all the difficult-to-understand and confusing features of the C language, such as header files, pointers, structures, units, operator overloading, virtual base classes, etc. It is more rigorous and concise.

3. Object-oriented: Object-oriented technology makes application development easy to use and saves code. Java is an object-oriented language and inherits many object-oriented benefits, such as code expansion and code reuse.

4. Security: Java language and semantics must be checked during Java compilation to ensure that each variable corresponds to a corresponding value, and a Java class is generated after compilation. At runtime, Java classes need to be loaded by the class loader and verified by the bytecode verifier before they can be run. When a Java class is used on the network, its permissions are set to ensure the security of the users being accessed.

5. Multi-threading: It is a lightweight process and an essential feature in modern programming. Multi-thread processing capabilities enable programs to have better interactivity and real-time performance.

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