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Introduction to Object Oriented Programming

To become a good developer, you need to know how to write flexible code. Learn how to use object orientation to create flexible code that is easy to change.

(4.9) 251 reviews

2,555 learners

  • madvirus0123
3시간 만에 완강할 수 있는 강의 ⏰
oop

Reviews from Early Learners

What you will learn!

  • Creating flexible code using object orientation

  • Understanding Encapsulation and Abstraction

  • How to divide functions

  • Understanding DI for managing dependencies

For all developers who want to create good code and good design.
Introduction to Object-Oriented Programming

Introduction to Object-Oriented Programming

Who would benefit from this introductory course on "object-oriented" programming? This course is for any developer who wants to write flexible code, enabling good code and good design .

All code changes. Over time, features are added, changed, and removed based on user needs. Therefore, code must be easily mutable. If change is difficult, it becomes difficult to adapt to new changes. Therefore, one of the most important skills a developer must possess is writing code with a flexible structure that can be easily modified. There are several ways to create code that is resilient to change, one of which is using object-oriented programming.

This course introduces encapsulation and polymorphism/abstraction for object-oriented programming and explores how they help create flexible and changeable code. Learn about objects, encapsulation, polymorphism, abstraction, composition, separation of functions and responsibilities, dependencies and dependency injection, and Dependency Integrity (DIP) step by step to create flexible and robust code.

This lecture
I recommend this to these people

Beginner Escape!
Now it's time to level up!

From beginner to next level
Developers who want to grow

What is clean code?
What is it?

Good with good code
When you want to design

Better developers
I want to be

A little better code
Developers who want to write

Ideal for development
A mountain I will overcome someday!

Learning programming
Everyone

This lecture
I have this goal

  • Understand the encapsulation and abstraction required for object-oriented programming and learn how to use them to write code that is flexible to change.
  • Learn how to split functionality and understand DI to manage dependencies.

In this lecture
You can learn things like this

  • object
  • Encapsulation
  • Polymorphism and Abstraction
  • Assembly rather than inheritance
  • Separation of functions and responsibilities
  • Dependency and DI
  • DIP

📢 To take this course smoothly,

  • A basic understanding of classes, inheritance, and interfaces in a programming language is required.

Expected questions
Q&A

Q. What programming language do you use in your classes?

The code in this lecture is written in Java. However, even those familiar with other languages like Kotlin, C#, Scala, or Python will find it quite easy to follow.

Q. What level of prerequisite knowledge is required to take the course?

You should know the following to successfully complete the course:

  • What is private and public
  • Differences between classes, abstract classes, and interfaces
  • How to inherit
  • How to override

In this lecture
Knowledge sharers

Choi Beom-gyun

  • Author of "Introduction to Spring 5 Programming"
  • Author of "Introduction to JPA Programming"
  • Writing 《DDD Start》
  • Author of "JSP 2.3 Web Programming"

Recommended for
these people

Who is this course right for?

  • For all developers who want to write flexible code.

  • Anyone interested in good code and good design

Need to know before starting?

  • Basic understanding of classes, inheritance, and interfaces in programming languages.

  • Object-oriented languages such as Java, Kotlin, C#, Scala, and Python.

Hello
This is

8,232

Learners

318

Reviews

41

Answers

4.9

Rating

2

Courses

객체 지향, 도메인 주도 설계, 테스트 주도 개발 등에 관심이 많은 개발자입니다.

주요 저서:

  • 도메인 주도 개발 시작하기
  • 테스트 주도 개발 시작하기
  • JPA 프로그래밍 입문
  • 스프링5 프로그래밍 입문
  • JSP 2.3 프로그래밍 저자

Curriculum

All

11 lectures ∙ (2hr 32min)

Published: 
Last updated: 

Reviews

All

251 reviews

4.9

251 reviews

  • 인프런님의 프로필 이미지
    인프런

    Reviews 2

    ∙

    Average Rating 5.0

    5

    100% enrolled

    All of the examples of 'bad code' that you showed were like my own code, so I laughed a little... Actually, I thought I knew what good code was and how to write it, but when I actually followed the examples, I realized that I actually didn't know anything at all. Thank you so much for the great lecture.

    • gns01873930님의 프로필 이미지
      gns01873930

      Reviews 1

      ∙

      Average Rating 5.0

      5

      100% enrolled

      I could feel that what I thought I knew about object-oriented programming was just a presumption. Also, the fact that you explained it in detail with real-life examples helped me understand why these concepts are necessary. Thank you!!

      • omg님의 프로필 이미지
        omg

        Reviews 205

        ∙

        Average Rating 5.0

        5

        100% enrolled

        It was an opportunity to think deeply about object orientation.

        • chrispark님의 프로필 이미지
          chrispark

          Reviews 6

          ∙

          Average Rating 5.0

          5

          100% enrolled

          It was really helpful. I was able to understand the development intentions of senior developers at the company better, and accordingly, I think I can develop more systematically and flexibly when I develop on my own. It was a moment when I felt ashamed of the codes I had created so far. Thank you for the great lecture..ㅠㅠ

          • 3141592님의 프로필 이미지
            3141592

            Reviews 20

            ∙

            Average Rating 5.0

            5

            100% enrolled

            I was able to understand why Java is an object-oriented language. I was so overwhelmed with studying Spring that I wanted to start from the bottom, and I think I finally got the results I wanted. Thank you!!

            $15.40

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