🚀 Why Use ReentrantLock in Java? A Real-World Use Case

👋 Introduction

In multi-threaded applications, synchronized is commonly used for locking. However, ReentrantLock provides greater control with features like:

Why Use ReentrantLock in Java? A Real-World Use Case

✅ Try-locking without blocking
✅ Interruptible locks
✅ Fairness policy

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In this article, we’ll explore why ReentrantLock is useful through a real-world example: "A Bank Account with Multiple Withdrawals."

💡 Problem Statement: Bank Transactions with Multiple Users

Imagine a bank system where multiple users try to withdraw money from the same account.

🔴 Issue with Unsynchronized Access