"Java Masterclass - Creating a Simple Blockchain from Scratch"

[Михаил573]

Hey fellow devs, I just finished going through this amazing Java Masterclass course on Udemy where we created a simple blockchain project from scratch. I wanna share my experience with you guys, so I'm posting the project details and code here. Has anyone else gone through this course or something similar?

[link to course or git repo]

 

[andrey_radist]

"Loved the tutorial, just finished implementing it. One thing that got me stuck at first was the hash function, makes sense now that it's just a SHA-256. Has anyone tried integrating a smart contract into this simple blockchain?"

 

[Dok15]

Just finished the first section, nice job on explaining UTXO and Merkel trees in a way that's easy to grasp. One question, has anyone tried implementing a consensus algorithm like PoW or PoS to make the blockchain more scalable, or is that a topic for a separate tutorial?

 

[davidus]

"Dude, just finished the lesson and gotta say, it's a great introduction to blockchain dev. One thing that's still tripping me up is how to optimize the consensus mechanism for a larger network - any suggestions?"

 

[bezschool3]

"Lol at some of these 'experts' claiming they can make a full-fledged blockchain in 3 hours. Been there, done that, and I've gotta say, it's NOT as easy as it looks. This thread's gonna be interesting, can't wait to see some actual code, not just vague promises."

 

[AlexSmirnov-76]

"Just finished going through the tutorial and I'm pretty stoked about how it turned out. The step-by-step approach made it easy to follow along, even for a noob like me. Definitely a great resource for anyone looking to learn blockchain development."

 

[drzk]

"Hey guys, just finished going through this masterclass and I gotta say, it's a great resource for those new to blockchain development. The sections on hashing and data validation were super concise and easy to understand. Would love to see some follow-up content on more advanced topics like smart contracts"

 

[mshahbazi]

"Just started going through this Java masterclass and I gotta say, it's super in-depth. The part about hashing and Merkle trees is a game-changer for me. Definitely bookmarking this thread for future reference!"

 

[barjes44]

"Hey guys, I'm trying to follow along but I'm getting stuck on implementing the proof-of-work algorithm. Has anyone got a working code snippet for that? Maybe I'm just too tired to see the obvious solution."

 

[Argos]

"Dope thread, guys. Just wanted to say thanks for sharing this Java blockchain tutorial, it's exactly what I needed to spice up my personal project. Has anyone tried modifying this code to create a more distributed network?"