Welcome to the Java Concurrency guide! 🚀 Learn how to handle multithreading, synchronization, and concurrent programming in Java. Below is a structured overview of key topics:
📘 Table of Contents
What is Concurrency?
- Multithreading basics 🧠
- Threads vs. Processes ⚖️
- Use cases for concurrency 📊
Thread Lifecycle
- New → Runnable → Running → Blocked → Terminated ⏳
Synchronization & Thread Safety
synchronized
keywords 🔐ReentrantLock
vs.synchronized
⚔️- Avoiding race conditions 🚫
Concurrency Utilities
ExecutorService
& thread pools ⚙️CountDownLatch
andCyclicBarrier
🛑Atomic
classes for safe operations 🧮
Advanced Concepts
- Volatile variables 🔄
- Thread-local storage 🧾
- Deadlock prevention strategies ⚠️
🧩 Example: Creating Threads
Thread thread = new Thread(() -> {
System.out.println("Running in thread: " + Thread.currentThread().getName());
});
thread.start();
💡 For deeper insights, check out our Java Concurrency Patterns tutorial!
📌 Key Tips
- Always prefer
ExecutorService
over rawThread
for better resource management. - Use
volatile
for variables accessed by multiple threads. - Avoid
synchronized
blocks unless necessary; prefer higher-level utilities.