#10 Master ReentrantLock & Condition | Explained with Barber Shop Analogy 🪑 | Java Multithreading

Welcome to another video in the Java Multithreading Series!
Today, we dive deep into one of the most powerful tools in Java concurrency:
👉 𝐑𝐞𝐞𝐧𝐭𝐫𝐚𝐧𝐭𝐋𝐨𝐜𝐤 𝐚𝐧𝐝 𝐂𝐨𝐧𝐝𝐢𝐭𝐢𝐨𝐧

LectureNotes: https://drive.google.com/file/d/1Eyj75a55tw2F7olh7rp659SuqjDR2alx/view?usp=sharing

We’ll break it down with a fun and easy-to-understand analogy — a Barber Shop with VIP and Regular waiting rooms!

🔍 In this video:
- Why synchronized, wait() & notify() fall short in complex scenarios
- How ReentrantLock gives you more control
- What Condition is and how it helps organize multiple waiting queues
- Real-world analogy: VIP vs Regular thread queues
- Hands-on Ping Pong example using ReentrantLock and Condition
- Important methods: lock(), unlock(), await(), signal()

📌 Key Concepts Covered:
- Thread coordination
- Fairness and starvation prevention
- Advanced synchronization in Java
- Condition queues vs intrinsic lock queue

🧠 Ideal for:
- Java learners
- Interview preparation
- Backend developers
- Anyone struggling with real-world concurrency problems

Timelines:
00:00 - Intro & Agenda
00:13 - Barber Shop Example
03:23 - ReentrantLock & Condition
04:19 - Queues explained with Ping Pong Example
16:15 - Running the Code in IDE
16:57 - Fairness in ReentrantLock
17:46 - Ending Notes and Next Video Agenda
🔗 Watch more from the series:
🧵 Multithreading Series (https://www.youtube.com/playlist?list=PLp5xrQBgWON4JZzPOcF1JVhJ13RasA5Kt)

💬 Drop a comment with your doubts or if you want a deeper dive into topics like signalAll(), tryLock(), or ReadWriteLock.

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#Java #Multithreading #ReentrantLock #Condition #JavaThreads #Concurrency #JavaTutorial #SoftwareEngineering

Видео #10 Master ReentrantLock & Condition | Explained with Barber Shop Analogy 🪑 | Java Multithreading канала Bits of Code by Anand