Singleton Design Pattern | Thread-Safe, Lazy & Eager Initialization + Real Use Cases
Welcome to Lecture 10 of the Ultimate Low-Level Design (LLD) Series by Coder Army!
Second week for #lowleveldesign #systemdesign #8weeksLLdchallenge.
We are doing 8 weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Let’s learn LLD like never before and attain advance level mastery on this subject.
Master the Singleton Design Pattern* — one of the most commonly asked concepts in system design interviews and source of confusion for many developers!
In this video, we’ll cover:
What is Singleton Design Pattern?
How to implement it in C++ (Step-by-Step)
Lazy vs Eager Initialization
Thread-Safe Singleton: The right way!
Real-world use cases of Singleton
Common pitfalls & bottlenecks you MUST avoid
By the end of this video, you’ll not only understand Singleton in depth, but you’ll also know when to use it, and when not to.
Join Coder Army Whatsapp Group: https://whatsapp.com/channel/0029Va6H...
Code and Notes: Github : https://github.com/adityatandon15/LLD
Connect with Aditya Tandon
Instagram : / adityatandon2
LinkedIn : / adityatandon2
Twitter : https://x.com/adityatandon02
00:00 Introduction
01:39 Understanding Object Creation logic
06:58 Creating Singleton class from scratch
16:56 Making class Thread Safe
21:09 Introducing double Locking
24:10 Eager Initialization
26:44 Conclusion
27:09 Practical use-case
31:00 Where not to use Singleton
#SingletonPattern #SystemDesign #LLD #JavaSingleton #ThreadSafeSingleton #DesignPatternsExplained #SoftwareEngineering #CodingInterviewPrep #LowLevelDesign #TechInterviewTips #ObjectOrientedDesign #OOPS #8weekslldchallenge.
On this page of the site you can watch the video online Singleton Design Pattern | Thread-Safe, Lazy & Eager Initialization + Real Use Cases with a duration of hours minute second in good quality, which was uploaded by the user Coder Army 23 May 2025, share the link with friends and acquaintances, this video has already been watched 47,384 times on youtube and it was liked by 1.4 thousand viewers. Enjoy your viewing!
