Singleton Design Pattern in Java - Thread Safe & Double-Checked Locking | LLD 2

Published: 17 December 2025
on channel: Lakhani STEM Tutorials
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Singleton Design Pattern in Java explained step-by-step with a real-world example, thread safety, and double-checked locking.

In this LLD Lesson 2, you'll learn:
What the Singleton Pattern is and why it's used (DP-4)
How to implement Singleton correctly in Java
Common mistakes that lead to multiple object creation
When you actually need a thread-safe Singleton
Double-checked locking and the safest practical approach

Perfect for anyone preparing for Low Level Design (LLD) interviews or learning OOP design patterns.

If you've searched for: singleton pattern design patterns, what is singleton design pattern, thread safe singleton, singleton pattern example, or DP-4 singleton — this tutorial is for you.

#Singleton #DesignPatterns #Java


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