Java: Understanding Classes and Object-Oriented Programming

hello~

I am Jaehwan Lee, the author of the book [Introduction to Java Programming by Jaehwan Lee].

Are you all having a hard time studying in this hot weather?

I have some good news for you all to cheer you up.

[Introduction to Java Programming: Prerequisite Class] The free lecture is a lecture on the contents of the book [Prerequisite Class], which is a separate appendix to the book [Introduction to Java Programming by Jaehwan Lee]...

Thinking that we would not only provide the lectures for free, we also uploaded the [Pre-requisite Class] book, which is a separate appendix, in e-book format for free on online bookstores.

Since it is a separate appendix to the official book, it was officially registered in an online bookstore.

This is not a sample view, this is the full book.

(If it's a book that's not worth reading, it won't even be listed on an online bookstore.)

Below are links to bookstores where you can download the book.

📘 《Lee Jae-hwan's Java Player Class》 <-- It is available on online bookstores for free.
📎 Kyobo Bookstore https://bit.ly/3As3SPR
📎 Aladdin https://bit.ly/37vZfYK
📎 Ridibooks https://bit.ly/3lSDvP5
📎 Google Books https://bit.ly/3xEyQCt

Now, download e-books for free from your favorite online bookstore and study while reading them~

This time, I published a Java book titled “Jaehwan Lee’s Introduction to Java Programming.”

For those who have already taken my class, coding using Java may be basic and easy.

I would like to introduce this book and its commentary lectures to beginners around me.

This book is intended to resolve the feelings of inadequacy and frustration that I felt while teaching job seekers using various books for several years.

Since I wrote the book myself, I wrote it in a way that was easy for beginners to understand, but it was also aimed at job seekers.

It covers in-depth topics.

And although we are not able to include all the content in video lectures, we are providing the pre-class portion of the book as free lectures on Inflearn.

In particular, the characteristic of [Player Class] is that even beginners find it difficult to install.

A way to easily adapt to Java by writing and compiling code in a web browser without installing Java.

Since you are explaining it, I would appreciate it if you could strongly recommend it to beginners.

Book Introduction: [ Jaehwan Lee's Introduction to Java Programming ]

• Kyobo Bookstore https://bit.ly/2VgWdEG
• Yes24 https://bit.ly/3f1WHWg
• Aladdin https://bit.ly/3ybW9ES
• Interpark https://bit.ly/2UVrVaW

Player Class Free Video Lecture Link [ Inflearn Free Lecture ]

Recently, when creating a Java project in Eclipse (2020-12), the module-info.java file, which is a feature added in Java 9, is being added. Some people may be experiencing errors because of this file.

This file is not used in this lecture, so if you do not create it when creating the project, you can code in the same environment as the lecture.

On this screen, do not select [Finish], but select [Next].

On the second screen

You can create the project by unchecking the Create module-info.java section at the bottom and clicking the [Finish] button.