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9 OOP Design Patterns You Must Know
9 OOP Design Patterns You Must Know A-Creational Patterns Deal with object creation mechanism to decouple the client code from concrete classes. Factory Pattern: Centralizes object creation logic and returns different subclasses based on input Singleton Pattern: Ensures only one instance of a class exists and provides global access to it. Builder Pattern: Constructs complex objects step-by-step, allowing optional configuration. B - Structural Patterns Help compose classes and objects into larger structures. Adapter Pattern: Allows incompatible interfaces to work together by translating one interface into another. Decorator Pattern: Adds new behavior to objects dynamically without altering their original structure. Proxy Pattern: Acts as a placeholder for accessing another object. C - Behavioral Patterns Focus on communication and interaction between objects. Strategy Pattern: Allows selecting an algorithm or behavior from a family of interchangeable strategies at runtime. Observer Pattern: Enables a one-to-many dependency so that when one object changes state, all its dependents are notified. Command Pattern: An object encapsulates all information needed to perform an action or trigger an event. Over to you: Which of these patterns have you used?
9 OOP Design Patterns You Must Know
A-Creational Patterns
Deal with object creation mechanism to decouple the client code from concrete classes.
Factory Pattern: Centralizes object creation logic and returns different subclasses based on input
Singleton Pattern: Ensures only one instance of a class exists and provides global access to it.
Builder Pattern: Constructs complex objects step-by-step, allowing optional configuration.
B - Structural Patterns
Help compose classes and objects into larger structures.
Adapter Pattern: Allows incompatible interfaces to work together by translating one interface into another.
Decorator Pattern: Adds new behavior to objects dynamically without altering their original structure.
Proxy Pattern: Acts as a placeholder for accessing another object.
C - Behavioral Patterns
Focus on communication and interaction between objects.
Strategy Pattern: Allows selecting an algorithm or behavior from a family of interchangeable strategies at runtime.
Observer Pattern: Enables a one-to-many dependency so that when one object changes state, all its dependents are notified.
Command Pattern: An object encapsulates all information needed to perform an action or trigger an event.
Over to you: Which of these patterns have you used?
