http://www.mcdonaldland.info/files/designpatterns/designpatternscard.pdf https://refactoring.guru/design-patterns/structural-patterns

quiz time!

Convert the interface of a class into another interface clients expect

Adapter

Decouple an abstraction from an implementation so the two can vary independently

Bridge

Compose objects into tree structures to represent part-whole hierarchies

Composite

Attach additional responsibilities to an object dynamically

Decorator

Provide a unified interface to a set of interfaces in a subsystem

Facade

Use sharing to support large numbers of fine-grained objects efficiently

Flyweight

Provide a surrogate or placeholder for another object to control access to it

Proxy

X is a structural design pattern that allows objects with incompatible interfaces to collaborate.

Adapter

X is a structural design pattern that lets you split a large class or a set of closely related classes into two separate hierarchies—abstraction and implementation—which can be developed independently of each other.

Bridge