Java with Data Structures & Algorithms (DSA) ☕📊

Welcome to the Java with Data Structures and Algorithms (DSA) Course! 🚀 This repository is designed to help learners master Java programming along with essential DSA concepts, preparing them for coding interviews and competitive programming.

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Table of Contents 📚

• Introduction
• Why Learn Java & DSA?
• Course Outline
• Installation
• Running Java Programs
• Learning Resources
• Contributing
• License
• Author

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Introduction 🎯

This course covers both Java programming and Data Structures & Algorithms (DSA). It is designed for beginners and intermediate learners who want to excel in software development, competitive programming, and technical interviews.

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Why Learn Java & DSA? 🤔

✅ Java is Versatile – Used in web development, mobile apps, and enterprise applications.
✅ Object-Oriented Programming (OOP) – Makes code reusable and maintainable.
✅ DSA is Essential – Helps in solving complex problems efficiently.
✅ High Demand in Jobs – Tech giants like Google, Amazon, and Microsoft test DSA skills in interviews.

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Course Outline 📖

The course is divided into two major sections: Java Programming and Data Structures & Algorithms (DSA).

🟢 Java Programming Basics

• Introduction to Java
• Setting Up Java & IDE (IntelliJ, Eclipse, VS Code)
• Variables, Data Types, and Operators
• Control Flow (if-else, switch-case)
• Loops (for, while, do-while)
• Functions and Recursion
• Object-Oriented Programming (OOP)
  • Classes & Objects
  • Inheritance
  • Polymorphism
  • Encapsulation
  • Abstraction

🟡 Data Structures

• Arrays & Strings
• Linked Lists (Singly, Doubly, Circular)
• Stacks & Queues
• HashMaps & HashSets
• Trees (Binary Trees, BST, AVL Trees)
• Graphs (DFS, BFS, Dijkstra's Algorithm)
• Heaps & Priority Queues
• Trie Data Structure

🔴 Algorithms

• Sorting Algorithms (Bubble Sort, Selection Sort, Merge Sort, Quick Sort)
• Searching Algorithms (Linear Search, Binary Search)
• Recursion & Backtracking
• Dynamic Programming (Knapsack, Fibonacci, LCS)
• Greedy Algorithms
• Graph Algorithms (Dijkstra’s, Floyd-Warshall, Kruskal’s, Prim’s)

🔥 Interview Preparation & Competitive Programming

• Coding Interview Questions
• Time & Space Complexity Analysis
• LeetCode, CodeChef, CodeForces Problem-Solving

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Installation 🔧

To run Java programs, install Java Development Kit (JDK).

Install JDK (Windows, macOS, Linux)

• Download and install JDK from Oracle
• Verify installation:

  java -version
  javac -version

Install an IDE (Recommended)

You can write Java code using:

• IntelliJ IDEA
  
• Eclipse
  
• VS Code with Java extensions

Running Java Programs ▶️

After writing a Java program, compile and execute it using:

javac HelloWorld.java
java HelloWorld

Example:

public class HelloWorld {
    public static void main(String[] args) {
        System.out.println("Hello, Java with DSA!");
    }
}

Learning Resources 📖

Here are some great resources to learn Java & DSA:

• 📘 Java - Oracle Docs
• 🌐 GeeksforGeeks - Java DSA
• 📺 YouTube DSA Tutorials (freeCodeCamp, CodeWithHarry, etc.)
• 📝 LeetCode, CodeChef, CodeForces)

Contributing 🤝

Contributions are welcome! Follow these steps to contribute:

• Fork the repository.
• Create a new branch (git checkout -b feature-branch).
• Commit your changes (git commit -m "Added new topic").
• Push to the branch (git push origin feature-branch).
• Create a Pull Request.

License 📜

This course is open-source and distributed under the MIT License.

Author 👤

Abhishek Singh

Github