java-dsa
A comprehensive Java Data Structures and Algorithms repository with clean code, optimised solutions, and interview-focused implementations.
🚀 Java Data Structures & Algorithms
A Comprehensive Java DSA Repository for Interview Preparation & Problem Solving
📖 About
This repository contains Data Structures and Algorithms implemented in Java with clean coding practices and interview-oriented solutions.
The primary goal of this repository is to strengthen problem-solving skills while preparing for coding interviews and software engineering roles.
Every implementation is organized topic-wise to make learning simple, structured, and efficient.
🎯 Objectives
- Master Java Programming
- Learn Data Structures
- Learn Algorithms
- Improve Problem Solving Skills
- Prepare for Coding Interviews
- Build Strong Programming Fundamentals
📚 Repository Structure
java-dsa
│
├── Arrays
│ ├── 1D-Array
│ ├── 2D-Array
│ ├── JaggedArray
│ └── Length-vs-length()
│
├── Searching
│
├── Sorting
│
├── Stack
│
├── Queue
│
├── Deque
│
├── HashMap
│
├── Java-Collections
│
├── Multithreading
│
├── Date-Time-API
│
├── README.md
│
├── LICENSE
│
└── .gitignore
📘 Topics Covered
🟢 Arrays
- 1D Array
- 2D Array
- Jagged Array
- Array Length
🔍 Searching
- Linear Search
- Binary Search
- Lower Bound
- Square Root
🔄 Sorting
- Bubble Sort
- Selection Sort
- Insertion Sort
📚 Stack
- Stack Implementation
- Largest Rectangle
- Parenthesis Problem
📦 Queue
🔀 Deque
🗂 HashMap
- HashMap Basics
- Practice Problems
☕ Java Collections
- ArrayList
- LinkedList
- HashMap
- HashSet
- TreeSet
⚡ Multithreading
- Thread Class
- Runnable Interface
- Synchronization
📅 Date-Time API
- LocalDate
- LocalTime
- LocalDateTime
- Formatting
💻 Technologies Used
| Technology | Usage |
|---|
| Java | Programming Language |
| Git | Version Control |
| GitHub | Repository Hosting |
| VS Code | Development |
📈 Repository Progress
| Topic | Status |
|---|
| Arrays | ✅ Completed |
| Searching | ✅ Completed |
| Sorting | ✅ Completed |
| Stack | ✅ Completed |
| Queue | ✅ Completed |
| Deque | ✅ Completed |
| HashMap | ✅ Completed |
| Java Collections | ✅ Completed |
| Multithreading | ✅ Completed |
| Date-Time API | ✅ Completed |
⭐ Features
- Clean Java Code
- Interview-Oriented Programs
- Topic-wise Organization
- Easy to Understand
- Beginner Friendly
- Optimized Solutions
- Professional Repository Structure
🚀 Getting Started
Clone Repository
git clone https://github.com/Danish7865/java-dsa.git
Navigate
cd java-dsa
Compile
javac FileName.java
Run
java FileName
🤝 Contributing
Contributions are always welcome.
If you'd like to improve this repository:
- Fork the repository
- Create a new branch
- Commit your changes
- Open a Pull Request
👨💻 Author
Danish Ansari
Software Engineering Aspirant
Java Developer
Data Structures & Algorithms Enthusiast
GitHub
https://github.com/Danish7865
📜 License
This project is licensed under the MIT License.
⭐ If you found this repository helpful, don't forget to Star it!
Made with ❤️ using Java