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Blockchain

Complete understanding of blockchain concepts for beginners (with Java)

The terminology and internal structure of blockchain, the core of the 4th industrial revolution, can be understood by the general public by looking at the source code.

(4.0) 32 reviews

254 learners

Level Basic

Course period Unlimited

  • pushupman
Java
Java
Blockchain
Blockchain
Java
Java
Blockchain
Blockchain

Reviews from Early Learners

Reviews from Early Learners

4.0

5.0

김종민

100% enrolled

It was a really useful lecture.

5.0

류철곤

100% enrolled

Blockchain is easy to understand.

5.0

heeun

100% enrolled

It was difficult, but I had to learn.

Complete Beginner's Guide to Blockchain Concepts (with Java)

"The blockchain industry will create 100,000 jobs within 3 years." "Galaxy S10 blockchain wallet launched." Facebook, Amazon, Kakao, and Naver have launched blockchain businesses. We often think of blockchain as simply Bitcoin, but how much do we really understand about its terminology and underlying principles? We need to prepare. This course will explain blockchain terminology and principles as easily as possible. At the very least, you should be able to confidently answer questions about them.
(Actual interview)
1) What exactly is mining? It's solving quizzes to get Bitcoin (X) Rather than this answer, mining is like below, where each node competes to find the hash value (key value) of the block, and the number of "000........." in front of the hash value is found as quickly as possible according to the difficulty level. -> I will show you the actual mining process through coding.
2) Understand the components of a blockchain wallet, including wallet and transaction wallets, private and public keys, transactions generated by the wallet, and UTXO.

Learning Objectives

The terminology and internal structure of blockchain, the core of the 4th Industrial Revolution, can be understood by the general public by looking at the source code.
  • Understanding Blockchain Concepts for General Programmers and Job Seekers
  • Anyone interested in blockchain and wanting to take their first steps

Helpful people

Understand blockchain, the core of the 4th Industrial Revolution.
  • Understanding Blockchain Concepts for General Programmers and Job Seekers
  • Anyone interested in blockchain and wanting to take their first steps
  • A diagrammatic and structural explanation that is easy to understand even for non-developers by listening to the source code explanation.
  • Developers can understand blockchain concepts through practice with explanations and source code.

Introduction of knowledge sharers

James Jeong
Hello. I have over 10 years of experience in software design and development. I started primarily in Java programming, and have since moved on to mobile (Android), Unity games, and most recently, Python (Django) projects. Since 2017, I've been interested in Bitcoin and blockchain, and I've been studying it. I'm convinced that blockchain will soon become the center of the world. Thank you.

Hello
This is

I hope everyone taking my course makes it to the day they pass their coding tests!

Happy coding!

Curriculum

All

32 lectures ∙ (4hr 18min)

Published: 
Last updated: 

Reviews

All

32 reviews

4.0

32 reviews

  • hsjsea69844055님의 프로필 이미지
    hsjsea69844055

    Reviews 1

    Average Rating 4.0

    4

    100% enrolled

    I keep getting errors even though I follow the programming language for creating a block chain 1234 in eclipse. When I run it, the following message appears. ㅜㅜ Exception in thread "main"java.lang.Error: unresoved compilation problem: at BlckChain/BlocChainTest.main(BlockChainTest.java:13)

    • pushupman
      Instructor

      Hello hsjsea6984~ Please tell me the source file or lecture location where the error occurs. Usually, you write it in the question section while watching the lecture, but I don't know the location because you wrote it in the course review. And the error you sent seems to be a problem with compilation. If you tell me the contents of BlckChain/BlocChainTest.main(BlockChainTest.java:13) I will look for it quickly. Thank you~

  • k1ng0824님의 프로필 이미지
    k1ng0824

    Reviews 9

    Average Rating 5.0

    5

    100% enrolled

    It was a really useful lecture.

    • atronicsv3692님의 프로필 이미지
      atronicsv3692

      Reviews 2

      Average Rating 4.0

      4

      100% enrolled

      It helped me a lot to understand the concept of blockchain.. Thank you... I wish there was a video on how to actually apply blockchain...^^ With a simple web...^^

      • pushupman
        Instructor

        Hello MYKim~ Thank you for your good rating.~ These days, Bitcoin is all the rage ^^; I wonder if people really know what blockchain is. I also This is a video on how to apply blockchain..Thank you for your good opinion. Stay healthy and study hard~ Thank you~~^^;

    • smartgon5200님의 프로필 이미지
      smartgon5200

      Reviews 4

      Average Rating 5.0

      5

      100% enrolled

      Blockchain is easy to understand.

      • pushupman
        Instructor

        Thank you, Mr. Ryu Cheol-gon, for your high class review. I am so grateful that you understood it easily. These days, blockchain companies are doing well. I hope you get good results~~ Thank you.~

    • heeun990972님의 프로필 이미지
      heeun990972

      Reviews 2

      Average Rating 5.0

      5

      100% enrolled

      It was difficult, but I had to learn.

      • pushupman
        Instructor

        Heeun, thank you for your high class review. That's right. Even if it's difficult, you have to learn it. I think blockchain will enter real life very quickly. Learn it well and get good results~~ Thank you.~

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