Decorator Pattern Courses

Design Patterns in Java: Structural
Pluralsight

C# Design Patterns: Part 1 (2016)
LinkedIn Learning

Java Design Patterns: Structural
LinkedIn Learning

Java EE: Design Patterns and Architecture
LinkedIn Learning

PHP: Design Patterns
LinkedIn Learning

Practical Design Patterns in Swift
LinkedIn Learning

Programming Foundations: Design Patterns
LinkedIn Learning

Python: Design Patterns
LinkedIn Learning

Spring: Design Patterns
LinkedIn Learning

Learn Structural Design Patterns in Java
Udemy