Welcome to my Java 0 to Advanced learning and revision repository.
This repository documents my complete Java journey—from the basics to advanced concepts. Every topic is organized into its own folder with well-structured programs, making it easy to learn, revise, and understand Java step by step.
The goal of this repository is to:
- Revise Java from scratch
- Practice every concept with code
- Build a strong programming foundation
- Improve problem-solving skills
- Maintain a consistent coding journey on GitHub
Each folder contains programs related to a specific topic with clean and readable code.
Java-0-to-Advanced/
│
├── 01-Variables
├── 02-Data-Types
├── 03-Operators
├── 04-Input-Output
├── 05-Conditional-Statements
├── 06-Loops
├── 07-Patterns
├── 08-Methods
├── 09-Arrays
├── 10-Strings
├── 11-OOP
├── 12-Inheritance
├── 13-Polymorphism
├── 14-Abstraction
├── 15-Interfaces
├── 16-Exception-Handling
├── 17-Collections
├── 18-Generics
├── 19-File-Handling
├── 20-Multithreading
├── 21-JDBC
└── ...
- Java Basics
- Variables & Data Types
- Operators
- User Input
- Conditional Statements
- Loops
- Pattern Programs
- Methods
- Arrays
- Strings
- Object-Oriented Programming (OOP)
- Inheritance
- Polymorphism
- Abstraction
- Encapsulation
- Interfaces
- Exception Handling
- Collections Framework
- Generics
- File Handling
- Multithreading
- JDBC
- Advanced Java Concepts
- Open any topic folder.
- Read the program source code.
- Run it on your local machine.
- Practice and experiment with the code.
- Java
- JDK 17+ (or latest)
- VS Code / IntelliJ IDEA
I regularly update this repository by adding new concepts and programs as I continue revising Java.
✅ Consistent Learning
✅ Clean Code
✅ Beginner to Advanced Journey
If you find this repository helpful:
- ⭐ Star the repository
- 🍴 Fork it
- 📌 Follow my learning journey
Nitish Kumar
B.Tech CSE Student | Frontend Developer | Java Learner
Happy Coding! ☕🚀