My Design Patterns

Design patterns are typical solutions to commonly occurring problems in software design. They are like pre-made blueprints that you can customize to solve a recurring design problem in your code. This repository includes various design patterns, organized by their categories, with corresponding class diagrams and code examples.

Creational Design Patterns

Pattern	Class Diagram	Code
Factory		Factory Code
Singleton		Singleton Code
Builder		Builder Code
Prototype	Prototype Class Diagram	Prototype Code
Abstract Factory		Abstract Factory Code

Structural Design Patterns

Pattern	Class Diagram	Code
Decorator	Decorator Class Diagram	Decorator Code
Facade		Facade Code
Adapter		Adapter Code
Bridge		Bridge Code
Flyweight		Flyweight Code
Composite	Composite Class Diagram	Composite Code
Proxy	Proxy Class Diagram	Proxy Code

Behavioral Design Patterns

Pattern	Class Diagram	Code
Chain of Responsibility		Chain of Responsibility Code
Command	Command Class Diagram	Command Code
Iterator		Iterator Code
Mediator		Mediator Code
Observer	Observer Class Diagram	Observer Code
Visitor		Visitor Code
Template Method		Template Method Code
Memento	Memento Class Diagram	Memento Code
State	State Class Diagram	State Code
Strategy		Strategy Code

Note

• This repository includes design patterns from the creational, structural, and behavioral categories.
• Each pattern folder contains:
  • A README file explaining the design pattern.
  • A class diagram for a visual representation.
  • Code examples demonstrating how to implement the pattern.
• You may find code examples from different websites.

Low Level Design

Problem Name	Link
Document Manager	Document Manager
Cab Booking Service	Cab Booking Service
Splitwise	Splitwise
Key-Value Store	Key Value Store
ATM System	ATM System
Magical Arena	Magical Arena
Vending Machine	Vending Machine

Learning Resources

• Refactoring.Guru: A comprehensive resource for understanding design patterns with examples.
• Head First Design Patterns: A book that provides an engaging and easy-to-understand approach to learning design patterns.