System Design Full Course - 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/0029Va6H0tbHVvTbcuT99Y1f Code and Notes: Github : https://github.com/adityatandon15/LLD Connect with Aditya Tandon Instagram : https://www.instagram.com/adityatandon2 LinkedIn : https://www.linkedin.com/in/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.