State Design Pattern Explained | Real World Example, Code Walkthrough, State vs Strategy | LLD скачать в хорошем качестве

State Design Pattern Explained | Real World Example, Code Walkthrough, State vs Strategy | LLD

Master the State Design Pattern and finally understand how it differs from the Strategy Pattern. In this video, we break down complex software states using a real-world ATM example and clean code. What you’ll learn: The Problem: Why if-else and switch statements break your code as it scales. The Solution: Implementing the State Pattern (Context, State Interface, and Concrete States). Real-World Example: A deep dive into an ATM system (Idle, HasCard, Authenticated, and Dispensed states). State vs Strategy: The class diagrams are identical, so what's the actual difference? (Hint: It’s all about Intent and Control). Code link - Java - https://github.com/Devaraj-Umapathi/L... Python - https://github.com/Devaraj-Umapathi/L... Timestamps: 00:00 - State Pattern Explained 00:57 - ATM Machine Example 02:34 - Code Walkthrough - "If-Else" Problem 06:46 - Code Walkthrough - With State Pattern 12:23 - State vs Strategy: The Ultimate Comparison Key Takeaway: Use the State Pattern when an object’s behavior changes based on internal status. Use the Strategy Pattern when you want to give the user a choice between different ways of doing the same thing. #DesignPatterns #SoftwareEngineering #LLD #CleanCode #ProgrammingTutorial #Tamil