What are programs and java?

What is a program?

Program: A set of ordered instructions written to allow a computer to perform certain operations or solve a problem.

It is written in some programming languages ​​and runs on some target architecture. For example, a program is like an article written in English (programming language). It needs to be read, understood, and marked by a person who understands English (compiler) and who can also read this article (structure system). article. Generally, computer programs based on English text must be compiled and linked into a digital format that is difficult for humans to interpret but can be easily interpreted by computers, and then put into operation.

What is java?

Java is an object-oriented programming language. It is a widely used computer programming language. It has the characteristics of cross-platform, object-oriented, and generic programming. It is widely used in enterprise-level Web application development and Mobile application development.

Java not only absorbs the various advantages of the C 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. [Recommended learning: java course]

Java is a strongly typed language, which allows extended compile-time checking for potential type mismatch issues. Java requires explicit method declarations and does not support C-style implicit declarations.

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.

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