Command Design Pattern | Real-world use case + Code | Design patterns in LLD
Автор: Coder Army
Загружено: 2025-05-30
Просмотров: 2769
Welcome to Lecture 15 of the Ultimate Low-Level Design (LLD) Series by Coder Army!
Third 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 explore the Command Design Pattern through a practical Smart Home Automation example. You’ll learn how to:
1. Encapsulate device actions (turn lights on/off, fan on/off etc) into reusable command objects
2. Build a flexible Invoker that queues, executes, and even undoes commands
3. Visualize the architecture with clear UML diagrams
4. Walk through real-world code (C++/Java) to see the pattern in action
Whether you’re automating your living room or architecting a scalable IoT platform, the Command Pattern is your key to clean, decoupled, and extensible code.
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
02:51 Building Smart Home Automation
06:08 UML Design
13:35 Introducing Undo Command
16:50 Code for Example
21:18 Command Pattern Doubts
25:11 Real world use case
28:16 Standard Definition
#SystemDesign #LowLevelDesign #LLD #CommandPattern #DesignPatterns #Cplusplus #JavaDevelopers #UMLDiagrams #TechInterviews #SoftwareEngineering #SmartHome #CleanCode #SoftwareArchitecture #ObjectOrientedDesign #CodingWithExamples #CodeBetter #8WeeksLLDChallenge

Доступные форматы для скачивания:
Скачать видео mp4
-
Информация по загрузке: