System Design Full Course - Flyweight Design Pattern | UML + Code | System Design

Welcome to Lecture 30 of the Ultimate Low-Level Design (LLD) Series by Coder Army! Sixth 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. In this video, we’ll implement the *Iterator Pattern* from scratch in C++ / Java to decouple traversal logic from data structures—making your code cleaner, more extensible, and true to Low-Level Design principles. In this video, we break down how the *Flyweight pattern optimizes memory usage* by sharing common data across multiple objects—perfect for games like *Asteroids* where thousands of bullets, asteroids, and enemies spawn! ## *What You’ll Learn:* - *What is the Flyweight Pattern?* – Reduce memory by sharing intrinsic state. - *UML Diagram Explained* – Visualize the structure of the pattern. - *C++ Implementation*  for an *Asteroids game*. - *Performance Comparison* – See how Flyweight *saves memory* vs. naive object creation. 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 02:12 Example of a Game 23:38 Standard UML 24:56 Code for Flyweight 50:33 Standard Definition 51:26 Real world use case #SystemDesign #LowLevelDesign #LLD #AdapterPattern #DesignPatterns #Cplusplus #JavaDevelopers #UMLDiagrams #TechInterviews #SoftwareEngineering #XMLtoJSON #CleanCode #SoftwareArchitecture #ObjectOrientedDesign #CodingWithExamples #CodeBetter #8WeeksLLDChallenge #JSON