Welcome to Java Complete Guide — a comprehensive learning repository that covers everything from Java fundamentals to advanced concepts. This repository is structured for learners and developers who want a strong foundation and deep dive into Java.
This repository is focused exclusively on Java. It is designed to help you solidify your understanding of the language — from basic syntax to advanced programming concepts. The goal is to document learning in a clean, structured, and reference-friendly way.
Organized, topic-wise markdown documentation to help you revise and retain core Java topics.
basics/— Variables, Data Types, Control Structures, OOPadvanced/— Collections, Multithreading, JVM, Memory Managementdesign_patterns/— Popular design patterns with real-world examples
Java examples that go along with the notes — runnable and beginner-friendly.
basics/— Syntax demos, Hello World, loops, etc.advanced/— Thread pools, concurrent collections, etc.design_patterns/— Singleton, Factory, Observer, etc.
java-complete-guide/ ├── code/ │ ├── basics/ │ ├── advanced/ │ └── design_patterns/ ├── notes/ │ ├── basics/ │ ├── advanced/ │ └── design_patterns/ └── README.md
Here’s my tracker for what I want to cover.
I’ll check them off as I go 💪
- Variables & Data Types
- Control Statements (if/else, switch)
- Loops (for, while, do-while)
- Arrays & Strings
- Object-Oriented Concepts (OOP)
- Classes, Objects, Methods
- Access Modifiers
- Exception Handling
- Java Packages
- Collections Framework (List, Set, Map)
- Streams API
- File I/O
- Multithreading & Concurrency
- Lambda Expressions
- Functional Interfaces
- Generics
- JVM Internals & Memory Model
- Reflection
- Annotations
- Singleton
- Factory
- Builder
- Observer
- Strategy
- Adapter
Sathish R
Senior Full Stack Developer | Java, React, Spring Boot, Web & Mobile Apps
📍 Chennai, India
Build this as my go-to guide for all Java concepts.
Track my growth. Write once, refer forever. 🙌