Welcome to Lecture 3 of the Ultimate Low-Level Design (LLD) Series by Coder Army! Today is Day 3 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. In this lecture, we break down one of the most powerful concepts in Object-Oriented Programming — *Inheritance and Polymorphism* — with clear real-world analogies and practical code demonstrations. *What you’ll learn in this video*: - What is Inheritance in OOP (with relatable real-life examples) - Understanding *Static Polymorphism (Function Overloading)* - Understanding *Dynamic Polymorphism (Method Overriding + Virtual Functions)* - How to implement both in real-world code - Why these concepts matter in *Low-Level Design* and *interviews* 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 Timestamps 00:00 Introduction 00:30 Inheritance 17:25 Code for Inheritance 20:42 Polymorphism 31:16 Code for Dynamic Polymorphism 34:28 Static Polymorphism 38:04 : Code for Static Polymorphism 39:17 : Code for both Static & Dynamic Polymorphism #OOPs #LowLevelDesign #Abstraction #Encapsulation #LLD #SystemDesign #SoftwareEngineering #TechInterviews #CoderArmy #CodingConcepts