Define a family of algorithms, put each of them in a separate class, and make their objects interchangeable

Decorator pattern for adding responsibilities to objects without modifying their existing code.

A simple finite state machine written in Java.

Use different types of iterators to iterate through different types of complex data structures

Repo with examples and short description regarding the most popular behavioral patterns

Add new operations to existing object without modifying the existing objects.

C# patterns

🧩 Java samples for a popular design pattern.

Behavioral patterns on Swift

Implementation Examples And Notes on Gang Of Four Design Patterns

Java Design Patterns

Python Design Patterns