What are the characteristics of java language?

The characteristics of the Java language are: simplicity, cross-platform, object-oriented, security, multi-threading, distribution, portability, interpretation, high performance and dynamics.

Java is a simple, object-oriented programming language, so what are the characteristics of the Java language? Next, I will explain it to you in the article Detailed introduction, hope it will be helpful to everyone.

【Recommended course: Java Tutorial】

(1) Simple Nature

The Java language is similar to C, so programmers who are familiar with C can easily master Java. In addition, it abandons the error-prone areas in C, especially the Java language does not use pointers and provides automatic The garbage collection allows programmers to not have to worry about memory management.

(2) Cross-platformness

The so-called cross-platformness means that the software can run normally in any computer environment without being constrained by computer hardware and operating systems. . In Java, its own virtual machine can achieve cross-platform very well. It provides a barrier from bytecode to the underlying hardware platform and operating system, making the Java language cross-platform.

(3) Object-oriented

Java is an object-oriented language, which can make program development easier and easier to use. For example, it has functions such as code expansion and code reuse.

(4) Security

The security of Java can be guaranteed from two aspects. On the one hand, in the Java language, C functions such as pointers and memory release are removed to avoid illegal memory operations. On the other hand, when Java is used to create a browser, the language features and the functionality provided by the browser itself are combined to make it more secure. The Java language must be tested many times before it is executed on the machine. It goes through code verification, checking the format of the code segment, detecting pointer manipulation, excessive object manipulation and attempts to change the type of an object.

(5) Multi-threading

Multi-threading refers to allowing an application to have two or more threads at the same time to support transaction concurrency and multi-tasking. deal with. In addition to built-in multi-threading technology, Java also defines some classes, methods, etc. to establish and manage user-defined multi-threads.

(6) Distribution

The Java language supports the development of Internet applications. There is a network application programming interface in the basic Java application programming interface, which provides users with Class libraries for network application programming, including URL, URLConnection, Socket, ServerSocket, etc. Java's RMI (Remote Method Activation) mechanism is also an important means of developing distributed applications.

(7) Portable

The Java system itself has strong portability. The Java compiler is implemented in Java, and the Java running environment is implemented in Implemented by ANSI C. In addition, Java also strictly stipulates the length of each basic data type

(8) explained

The Java interpreter can directly run the target code instructions, Linking programs typically require fewer resources than compiling programs, so programmers can spend more time creating source programs.

(9) High performance

If the interpreter is not slow, Java can directly translate the target code into machine instructions at runtime. The speed of translating object code is no different from the performance of C/C.

(10) Dynamics

One of the design goals of the Java language is to adapt to dynamically changing environments. The classes required by the Java program can be dynamically loaded into The running environment can also load the required classes through the network. This also facilitates software upgrades.

Summary: The above is the entire content of this article, I hope it will be helpful to everyone.

The above is the detailed content of What are the characteristics of java language?. For more information, please follow other related articles on the PHP Chinese website!