Welcome to a comprehensive Java learning repository designed for juniors and beginners who want to master Java without learning 100 new things at once. This hub provides a structured pathway from basics to advanced topics like Spring Boot, DSA, and AI/Agents with Java.
- Variables, Data Types, Operators
- Control Flow (if-else, loops, switch)
- Methods & Functions
- Arrays & Collections (List, Map, Set)
- Exception Handling
- Classes & Objects
- Inheritance, Polymorphism
- Encapsulation & Abstraction
- Access Modifiers
- Interfaces & Abstract Classes
- Static & Inner Classes
- Arrays, Linked Lists, Stacks, Queues
- Trees (Binary, BST, Balanced Trees)
- Graphs & Graph Algorithms
- Sorting & Searching Algorithms
- Dynamic Programming
- Each topic includes LeetCode links for practice
- Spring Boot Fundamentals
- REST APIs
- Database Integration (JPA, Hibernate)
- Application Structure
- Best Practices
- Introduction to AI in Java
- LangChain4j Guide (RAG, Agents, Tools)
- Agentscope Tutorial
- Multi-Agent Architectures
- Practical Examples (Document Retrieval, Code Generation)
- Start with Java Basics - Master fundamentals first
- Move to OOP - Build strong OOP concepts
- Practice DSA - Enhance problem-solving skills
- Explore Java Backend - Build real applications
- Dive into Master AI - Learn cutting-edge AI integration
- See CONTRIBUTING.md for guidelines
- Add new lessons, examples, or DSA problems
- Update LeetCode links and difficulty tags
OOPS/
├── docs/ # GitHub Pages content
│ ├── index.html # Homepage
│ ├── styles.css # Styling
│ ├── java-basics/
│ │ ├── index.html
│ │ └── examples/
│ ├── oops/
│ │ ├── index.html
│ │ └── examples/
│ ├── dsa/
│ │ ├── index.html
│ │ ├── problems/
│ │ └── solutions.md
│ ├── java-backend/
│ │ ├── index.html
│ │ └── examples/
│ └── master-ai/
│ ├── index.html
│ ├── langchain4j-guide.md
│ ├── agentscope-guide.md
│ └── examples/
├── Lect1/, Lect2/, ... # Your existing OOP lessons
├── CONTRIBUTING.md
└── README.md
git clone https://github.com/yourusername/java-learning-hub.git
cd java-learning-hub- Go to your repository Settings → Pages
- Select Deploy from a branch
- Choose
mainbranch and/docsfolder - Click Save
Your site will be live at: https://yourusername.github.io/java-learning-hub
- Java 11+ - Programming language
- Spring Boot - Backend framework
- LangChain4j - AI/ML framework for Java
- Agentscope - Multi-agent framework
- HTML/CSS - Documentation site
- GitHub Pages - Hosting
We welcome contributions from juniors and seniors alike!
- Create a new
.mdor.javafile in the appropriate folder - Follow the template format (see CONTRIBUTING.md)
- Add LeetCode links (for DSA problems)
- Submit a PR with description
- Fork the repository
- Create a branch:
git checkout -b fix/description - Make changes and commit
- Push and create a PR
- Official Java Documentation: https://docs.oracle.com/javase/
- Spring Boot Docs: https://spring.io/projects/spring-boot
- LeetCode: https://leetcode.com/
- LangChain4j: https://docs.langchain4j.dev/
- Agentscope: https://modelscope.cn/org/agentscope
- DSA Reference: https://github.com/BEASTSHRIRAM/DSA-Java
- Issues: Use GitHub Issues for questions/bugs
- Discussions: Start a Discussion thread
- Feedback: Suggestions welcome!
This repository is licensed under the MIT License - see LICENSE file for details.
Happy Learning! Start from Java Basics and progress at your own pace. Remember: Consistency beats intensity!