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This article mainly explains "what are the object-oriented characteristics of Java". The content of the explanation is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "what are the object-oriented characteristics of Java".

1. What is object-oriented

Object-oriented is the method of software development. It is defined relative to process-oriented. The object-oriented method organizes the relevant data and methods as a whole to wake up the system modeling from a higher level, so as to be closer to the natural operation mode of errors. Object-oriented is a kind of programming thought which accords with the habit of human thinking. There are different forms of things in real life, and there are all kinds of connections between these things. Using objects to map real things in a program uses the relationship of objects to describe the relationship between things. This idea is object-oriented.

2. What are the characteristics of object-oriented?

The object-oriented feature is the main content that distinguishes Java programming language from other process-oriented programming languages. Its main features include encapsulation, inheritance and polymorphism, the following is a detailed introduction of the three characteristics.

Have the characteristic of encapsulation

Encapsulation is the core idea of object-oriented, which encapsulates the attributes and behavior of objects without letting the outside world know the specific implementation details. This is the idea of encapsulation. For example, when users use a computer, they only need to tap the keyboard with their fingers. They do not need to know how the computer works inside. Even though the user may happen to know how the computer works, when using it, they do not rely entirely on the details of how the computer works.

Have the characteristic of inheritance

Inheritance mainly describes the relationship between classes. Through inheritance, the function of the original class can be extended without rewriting the original class. For example, there is a class of cars, which describes the general characteristics and functions of cars, and the class of cars should not only include the characteristics and functions of cars, but also add the unique functions of cars. At this time, the car class can inherit the car class and add car features separately to the car class. Inheritance not only enhances the reusability of the code and improves the development efficiency, but also facilitates the modification and supplement of the program.

Have the characteristic of polymorphism

Polymorphism means that duplicate names are allowed in a program, which means that properties and methods defined in one class can have different data types or behave differently after they are inherited by other classes. this makes the same property and method have different semantics in different classes. For example, when you hear the word "Cut", the barber's behavior is a haircut, the actor's behavior is to stop performing different objects, and the behavior is different.

Thank you for your reading, the above is the content of "what are the object-oriented characteristics of Java". After the study of this article, I believe you have a deeper understanding of what the object-oriented characteristics of Java are, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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