Types of Design Patterns

Type	Design Pattern	Description
Creational	Singleton	Ensures a class has only one instance.
	Factory Method	Defines an interface for creating objects but lets subclasses decide the instantiation.
	Abstract Factory	Provides an interface for creating families of related objects.
	Builder	Separates object construction from its representation.
	Prototype	Creates new objects by copying an existing object.
Structural	Adapter	Allows incompatible interfaces to work together.
	Bridge	Decouples abstraction from implementation.
	Composite	Organizes objects into tree structures.
	Decorator	Adds new behaviors to objects dynamically.
	Facade	Provides a simplified interface to a complex system.
	Flyweight	Minimizes memory usage by sharing objects.
	Proxy	Controls access to another object.
Behavioral	Chain of Responsibility	Passes a request along a chain of handlers.
	Command	Encapsulates a request as an object.
	Interpreter	Defines a grammar and an interpreter for a language.
	Iterator	Provides sequential access to elements of a collection.
	Mediator	Centralizes communication between objects.
	Memento	Captures and restores an object's state.
	Observer	Notifies dependent objects of state changes.
	State	Allows an object to change behavior when its state changes.
	Strategy	Defines interchangeable algorithms.
	Template Method	Defines the skeleton of an algorithm, allowing steps to be customized.
	Visitor	Allows adding new operations to objects without modifying them.