Strategy Design Pattern Explained with Real-World Example | Design Patterns in LLD

Welcome to Lecture 8 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.


Feeling confused about Strategy Design Pattern? You’re not alone.

In this video, we break it down step-by-step with a real-world example that makes everything click.

You’ll learn:

✅ What is the Strategy Design Pattern

✅ When and why to use it

✅ How to implement it using clean OOPS principles

✅ A practical use-case that you can relate to and code along with it

This pattern is a key part of many *system design and low-level design interviews, and mastering it will help you write more **extensible and maintainable code*.


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Code and Notes: Github : https://github.com/adityatandon15/LLD

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Timestamps:
00:00 Introduction
03:01 Robot Example Problem
04:08 Why Inheritance is Bad
12:04 Defining Strategy Pattern
12:26 Revisiting Robot problem
21:05 Revisiting Definition
23:05 Code for Strategy Pattern
25:40 Using more less inheritance
27:40 Standard UML for Strategy Pattern
29:26 Real life example
32:05 Conclusions

#StrategyPattern #DesignPatterns #OOPS #SystemDesign #LLD #LowLevelDesign #SoftwareEngineering #JavaDesignPatterns #InterviewPrep #DSA #OOPS #SOLID