adding README.md file

Author: rajendrapancholi

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README.md

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+# 🚀 DSA in Java: Mastering Data Structures and Algorithms
+
+Welcome to **DSA in Java**, a comprehensive repository for learning and mastering **Data Structures and Algorithms (DSA)** through Java. This repository provides clean, optimized solutions to common DSA problems, making it a perfect resource for interview preparation, competitive programming, and building a strong coding foundation.
+
+---
+
+## 📚 Table of Contents
+
+- [About the Project](#about-the-project)
+- [Key Features](#key-features)
+- [Installation](#installation)
+- [Topics Covered](#topics-covered)
+- [Contribution Guidelines](#contribution-guidelines)
+- [Contact](#contact)
+
+---
+
+## 📖 About the Project
+
+This repository is designed to guide you through a structured journey of learning DSA concepts. It offers Java implementations of key data structures and algorithms, along with detailed explanations and complexity analyses.
+
+**Who is this for?**
+
+- Developers preparing for **coding interviews**.
+- Students or professionals wanting to strengthen their **DSA knowledge**.
+- Competitive programmers aiming to solve problems efficiently.
+- Anyone interested in writing **clean and optimized code**.
+
+---
+
+## ✨ Key Features
+
+- **Comprehensive Coverage**: All major data structures and algorithms, from basic to advanced.
+- **Java Implementations**: Each topic is implemented in Java with clear and readable code.
+- **Interview Focus**: Common problems asked in **top tech interviews** with solutions.
+- **Optimization Insights**: Analysis of time and space complexities for every solution.
+- **Hands-on Practice**: Solved problems from **LeetCode**, **GeeksforGeeks**, and **HackerRank**.
+
+---
+
+## ⚙️ Installation
+
+Follow these steps to set up the project locally:
+
+1. **Clone the repository**:
+
+ ```bash
+ git clone https://github.com/rajendrapancholi/dsa_using_java.git
+ ```
+
+2. **Navigate into the project directory**:
+
+ ```bash
+ cd DSA-Java
+ ```
+
+3. **Run the Java files** using your favorite IDE or through the command line:
+ ```bash
+ javac FileName.java
+ java FileName
+ ```
+
+---
+
+## 💻 Topics Covered
+
+This repository covers the following DSA topics in detail:
+
+1. Arrays
+2. Linked Lists
+3. Stacks & Queues
+4. Trees (BST, AVL)
+5. Hashing
+6. Sorting & Searching Algorithms
+7. Graph Algorithms (BFS, DFS)
+8. Dynamic Programming
+9. Recursion & Backtracking
+10. Heaps & Priority Queues
+
+---
+
+## 🛠️ Contribution Guidelines
+
+We welcome contributions! If you'd like to improve existing solutions, add new ones, or fix bugs, please consider the following steps:
+
+1. Fork the repository.
+2. Create a new branch (`git checkout -b feature/your-feature`).
+3. Make your changes and commit them (`git commit -m 'Add feature'`).
+4. Push to the branch (`git push origin feature/your-feature`).
+5. Open a pull request.
+
+---
+
+## 🤝 Contact
+
+For any queries or feedback, feel free to reach out:
+
+- **Rajendra Pancholi**: [rpancholi522@gmail.com](mailto:rpancholi522@gmail.com)
+- **GitHub**: [github.com/rajendrapancholi](https://github.com/rajendrapancholi/)
+- **Website**: [www.rajendrapancholi.com](https://rajendrapancholi.vercel.app/)
+- **LinkedIn**: [www.linkedin.com/in/rajendra-pancholi](https://www.linkedin.com/in/rajendra-pancholi-11a3a5286/)
+
+---
+
+Happy Coding Journey! 👨‍💻👩‍💻