codeprep labs

CodePrep Labs is a collection of code examples and tutorials designed to help developers learn new concepts through practical, hands-on examples. It’s a GitHub organization with 35+ repositories covering various Java technologies and frameworks.

What it includes

Design Patterns - Real-world examples of various design patterns
Modern Java - Features from Java 8 to the latest versions
Multithreading - Comprehensive Java concurrency examples
Spring Framework - Tutorials on Spring Boot, Spring MVC, and Spring IOC
Kafka & Messaging - Apache Kafka integration examples
Database Technologies - Hibernate 5.4.x and Elasticsearch tutorials
Modern Frameworks - Micronaut framework examples

Why I built it

I wanted to create a centralized resource where developers can find working code examples and learn by doing. Rather than just reading documentation, learners can clone, run, and modify real examples to understand how different technologies work.

Highlights

35+ repositories covering different Java technologies
All code is MIT or Apache-2.0 licensed (free to use)
Based in Bangalore, Karnataka, India
Focuses on practical, runnable examples
Active maintenance with recent updates

Technologies covered

Java (primary focus, from Java 8 onwards)
Spring Framework (Boot, MVC, IOC, Security)
Apache Kafka
Elasticsearch
Hibernate ORM
Micronaut
Design Patterns & Best Practices

Architecture approach

CodePrep Labs follows a simple, modular learning structure:

Each repository focuses on one technology or concept
Self-contained examples that can run independently
Clear separation of concerns in tutorial organization
Progressive learning path from basics to advanced topics

The repositories are organized by technology instead of by project, making it easy for learners to find exactly what they need.

@thejavamonk