Multithreading in Java

A comprehensive Java project demonstrating multithreading concepts with practical examples and real-world use cases.

This repository provides in-depth examples and explanations of Java multithreading, covering everything from basic thread creation to advanced synchronization patterns. Learn how to build efficient, concurrent applications using Java's threading capabilities.

• Thread Basics: Creating and running threads using Thread class and Runnable interface
• Thread Synchronization: Synchronized methods, locks, and thread-safe operations
• Thread Communication: Inter-thread communication and coordination
• Thread Pools & Executors: Managing multiple threads efficiently with thread pools
• Real-world Examples: Practical implementations showing multithreading in action
• Best Practices: Industry-standard patterns and common pitfalls to avoid

• Java 25 or higher
• Maven 3.6+ for dependency management

This project uses:

• JNA (Java Native Access) v5.19.1 - For native library integration

git clone https://github.com/GTnoBRAND/multithreading-java.git
cd multithreading-java

mvn clean install

# Compile the project
mvn compile

# Run a specific class
mvn exec:java -Dexec.mainClass="com.example.YourMainClass"

multithreading-java/
├── src/
│   ├── main/
│   │   └── java/              # Main source code
│   └── test/
│       └── java/              # Unit tests
├── pom.xml                    # Maven configuration
└── README.md                  # This file

• Thread creation and lifecycle
• Thread states and transitions
• Starting and stopping threads
• Thread naming and priorities

• Synchronized blocks and methods
• Monitor-based locking
• Race conditions and deadlocks
• Volatile variables

• ReentrantLock and ReentrantReadWriteLock
• Semaphore and CountDownLatch
• CyclicBarrier and Phaser
• Thread-safe collections

• ExecutorService and thread pools
• FixedThreadPool, CachedThreadPool, and SingleThreadExecutor
• Future and callable interfaces
• Scheduled execution

Here's a simple example of creating and running a thread:

// Method 1: Extend Thread class
class MyThread extends Thread {
    public void run() {
        System.out.println("Thread is running");
    }
}

MyThread thread = new MyThread();
thread.start();

// Method 2: Implement Runnable interface
class MyRunnable implements Runnable {
    public void run() {
        System.out.println("Thread is running");
    }
}

Thread thread = new Thread(new MyRunnable());
thread.start();

Contributions are welcome! To contribute:

1. Fork the repository
2. Create your feature branch (git checkout -b feature/AmazingFeature)
3. Commit your changes (git commit -m 'Add some AmazingFeature')
4. Push to the branch (git push origin feature/AmazingFeature)
5. Open a Pull Request

This project is open source and available without a specific license. Feel free to use it for learning and educational purposes.

If you have questions or need help:

• Open an Issue on GitHub
• Check the reference materials in Reference.txt
• Review the example code for practical patterns

• Oracle Java Concurrency Tutorial
• Java Memory Model
• Effective Java - Concurrency

1. Start with basic thread creation (Thread and Runnable)
2. Learn about thread synchronization and thread safety
3. Explore the Executor framework for managing threads
4. Study advanced synchronization utilities
5. Review real-world examples and best practices

Last Updated: August 2026
Java Version: 25
Status: Active Development