GoF Design Patterns Cheat Sheet 👺 | Mnemonics + Images

This post provides memorization tips for design patterns and links to detailed explanations for each.

• The best way to memorize is to use a method you are comfortable with, ideally related to a topic you find interesting.
• The mnemonics below are for reference.
• The method I use combines acronyms and images.
• It's not enough to just know the names of the design patterns. Be sure to click the links to understand what each pattern does.

Creational Patterns

Mnemonic: SingFacBuilPAb

Singleton, Factory, Builder, Prototype, Abstract Factory

• Sing: Singleton Pattern
• Fac: Factory Method Pattern
• Buil: Builder Pattern
• P: Prototype Pattern
• Ab: Abstract Factory Pattern

Creational Patterns Explained (Links)

• All Creational Patterns Explained + Exam Questions

Structural Patterns

Mnemonic: ADPFBFC

Adapter, Decorator, Proxy, Facade, Bridge, Flyweight, Composite

• A: Adapter Pattern
• D: Decorator Pattern
• P: Proxy Pattern
• F: Facade Pattern
• B: Bridge Pattern
• F: Flyweight Pattern
• C: Composite Pattern

Structural Patterns Explained (Links)

1. Adapter, Decorator, Proxy, Facade Explained + Exam Questions
2. Bridge, Flyweight, Composite Explained + Exam Questions

Behavioral Patterns

Mnemonic: SO MVI SMC CT

Strategy, Observer, Mediator, Visitor, Iterator, State, Memento, Command, Chain of Responsibility, Template Method

• S: Strategy Pattern
• O: Observer Pattern
• M: Mediator Pattern
• V: Visitor Pattern
• I: Iterator Pattern
• S: State Pattern
• M: Memento Pattern
• C: Command Pattern
• C: Chain of Responsibility Pattern
• T: Template Method Pattern

Behavioral Patterns Explained (Links)

1. Strategy, Observer Explained + Exam Questions
2. Mediator, Visitor Explained + Exam Questions
3. Iterator, State Explained + Exam Questions
4. Chain of Responsibility, Memento Explained + Exam Questions
5. Command, Template Method Explained + Exam Questions