Abstract Factory

Creates an instance of several families of classes.

Builder

Separates object construction from its representation.

Factory Method

Creates objects without specifying the exact class.

Prototype

Clones objects to create new instances.

Singleton

Ensures a class has only one instance.

Adapter

Allows incompatible interfaces to work together.

Bridge

Separates abstraction from implementation.

Composite

Compose objects into tree structures to represent part-whole hierarchies.

Decorator

Attach additional responsibilities to an object dynamically.

Facade

Provides a simplified interface to a complex subsystem.

Flyweight

Reduces memory usage by sharing common parts of objects.

Proxy

Provides a surrogate or placeholder for another object.

Chain of Responsibility

Passes a request along a chain of objects.

Command

Encapsulates a request as an object.

Iterator

Provides a way to access elements sequentially without exposing underlying representation.

Mediator

Defines simplified communication between objects.

Memento

Captures and restores an object's internal state.

Observer

Objects subscribe to and receive notifications of state changes.

State

Alters an object's behavior when its internal state changes.

Strategy

Defines a family of algorithms, encapsulates each one.

Template Method

Defines the skeleton of an algorithm, deferring steps to subclasses.

Visitor

Defines new operations without changing the classes on which they operate.

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