Design Patterns

Design patterns are reusable, general solutions to common software design problems that occur in object-oriented programming. They provide templates for structuring code to improve flexibility, maintainability, and scalability, without being tied to specific implementations. Examples include Singleton, Factory, Observer, and Strategy patterns.

Also known as: Software Design Patterns, GoF Patterns, Gang of Four Patterns, Architectural Patterns, OOP Patterns

Why learn Design Patterns?

Developers should learn design patterns to write cleaner, more efficient code that is easier to understand and modify, especially in large-scale applications. They are essential for solving recurring architectural challenges, such as managing object creation, handling communication between components, or adapting interfaces, and are widely used in frameworks like Spring and .NET.

Learning Resources

• book: Design Patterns: Elements of Reusable Object-Oriented Software
• tutorial: Refactoring Guru - Design Patterns
• course: Design Patterns in Java
• video: Design Patterns Tutorial by Derek Banas
• docs: MDN Web Docs - Design Patterns