🚀 Vending Machine System Design – LLD for Interviews & Projects 🧑‍💻

Описание: Article - https://codewitharyan.com/system-desi...

Structured DSA (Basics to Advanced) Practice - https://codewitharyan.com/cwa-sheet/p...

My Uber Interview Experience -    • I Survived the Uber Interview Here's What ...  
My Coinbase Interview Experience -    • What Nobody Tells You About Coinbase Inter...  
My American Express Inteview Experience -    • What's the Secret to Acing the American Ex...  
My JP Morgan & Chase Interview Experience -    • STOP Making These 5 Common Mistakes in You...  
..... more coming soon (along with LLD course on Second Channel)

Most Frequently asked questions based on Leetcode Premium - https://codewitharyan.com/cwa-sheet/a...

LLD Syllabus which we gonna cover - https://codewitharyan.com/system-desi...

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✨ Timelines✨
00:00 - Introduction
00:28 - Vending Machine Design Problem Intro
00:48 - Interview Plan and Process Structure
01:27 - What is a Vending Machine
02:47 - Products and Inventory in Vending Machine
04:23 - Vending Machine States Overview
05:11 - Interview Setting: How to Approach
06:59 - Inaction of the Process Explained
08:06 - Core Operations Summary
09:03 - Key Interview Questions to Ask
10:25 - Handling State Transitions
11:06 - Entities Breakdown
13:04 - Design Patterns Overview
14:32 - Applying State Pattern
17:06 - Focus on Key Design Patterns
17:12 - Starting Class Diagram
17:58 - State, Context, and Entities
19:36 - State Transition Flow Diagram
22:16 - Handling Out of Stock and Error States
23:09 - Class and Type Definitions
24:51 - Inventory Methods
25:59 - State Design Pattern Classes
27:05 - Vending Machine Context Setup
29:02 - State Advancing Logic
30:05 - Defensive Coding Practices
31:08 - Inventory and Item Update Methods
32:22 - Concrete States Implementation
34:42 - Main Function Structure
36:34 - Adding Payment Strategy
37:08 - Payment Strategy and Implementations
38:29 - Final Integration and Changes
39:10 - Final Recap and Design Extensibility


✨ Hashtags ✨
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