Factory Method & Abstract Factory

Factory Method: Flexible Object Creation

Factory Method defines an interface for creating objects but lets subclasses decide which class to instantiate.

Problem It Solves

When you don't know the exact type of object you need until runtime, or when object creation logic is complex.

Simple Factory (Not GoF, but Common)

True Factory Method Pattern

Real-World Example: Payment Processing

Benefits

• Decouples object creation from usage
• Easy to add new types without modifying existing code (Open/Closed Principle)
• Centralizes object creation logic
• Makes code more testable