Java Object-oriented

Object Oriented (i)

What is object-oriented

1. Object-oriented is a programming method

2. Object-oriented is a way of thinking

3. Object-oriented is not a programming language

How should you learn to object-oriented

1. Mastering an object-oriented language syntax

2. Mastering the object-oriented way of thinking

3. Familiarity with object-oriented design principles

4. Mastering object-oriented design patterns

What is an object-oriented thinking method?

1. First determine who will do, and then determine how to do;

2. First consider the whole, secondly consider the partial;

3. First of all, consider the abstract, followed by specific

Summarize

1. Don't assume that mastering an object-oriented language is about mastering object-oriented

2. Habits and the comparison between the object-oriented and the real world;

Object-oriented Design the ultimate goal is to reduce duplication of code

Object Oriented (ii)

1. Methods for creating classes

Class name

{

Properties

Method

}

Properties are also called member variables, which are used primarily to describe the state of a class

Methods are also called member methods, which are used primarily to describe the behavior of a class

How to represent a class

Methods for defining classes

2. Ways to create objects

3. References to Objects and objects

Relationship of classes and objects

Java Object-oriented