Advanced Programming | 27. Design Patterns by Abraham | Learn Smarter
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27. Design Patterns

27. Design Patterns

Design patterns in software engineering provide a framework for solving common design problems, promoting code reuse and maintainability. By understanding the different categories of design patterns and their applications, developers can create more scalable and manageable software solutions. Learning design patterns also improves communication among developers and aligns practices with industry standards.

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Sections

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  1. 27
    Design Patterns

    Design patterns are reusable solutions to common issues in software design...

  2. 27.1
    History And Origins Of Design Patterns

    This section explores the historical origins of design patterns, tracing...

  3. 27.2
    Benefits Of Using Design Patterns

    Design patterns provide software developers with efficient solutions that...

  4. 27.3
    Classification Of Design Patterns

    Design patterns are categorized into three primary types: creational,...

  5. 27.3.1
    Singleton Pattern

    The Singleton Pattern ensures a class has only one instance and provides a...

  6. 27.3.2
    Factory Method Pattern

    The Factory Method Pattern provides an interface for creating objects while...

  7. 27.3.3
    Abstract Factory Pattern

    The Abstract Factory Pattern provides an interface for creating families of...

  8. 27.3.4
    Builder Pattern

    The Builder Pattern is a creational design pattern that separates the...

  9. 27.3.5
    Prototype Pattern

    The Prototype Pattern is a creational design pattern that enables object...

  10. 27.3.6
    Adapter Pattern

    The Adapter Pattern allows incompatible interfaces to work together,...

  11. 27.3.7
    Bridge Pattern

    The Bridge Pattern is a structural design pattern that decouples an...

  12. 27.3.8
    Composite Pattern

    The Composite Pattern is a structural design pattern that allows composing...

  13. 27.3.9
    Decorator Pattern

    The Decorator Pattern dynamically adds behavior to objects without altering...

  14. 27.3.10
    Facade Pattern

    The Facade Pattern provides a simplified interface to a complex subsystem,...

  15. 27.3.11
    Flyweight Pattern

    The Flyweight Pattern is a structural design pattern that optimizes memory...

  16. 27.3.12
    Proxy Pattern

    The Proxy Pattern provides a surrogate or placeholder for another object to...

  17. 27.3.13
    Chain Of Responsibility Pattern

    The Chain of Responsibility Pattern is a behavioral design pattern that...

  18. 27.3.14
    Command Pattern

    The Command Pattern encapsulates a request as an object, facilitating...

  19. 27.3.15
    Interpreter Pattern

    The Interpreter Pattern provides a mechanism to define a grammar for a...

  20. 27.3.16
    Iterator Pattern

    The Iterator Pattern provides a standard way to traverse elements of a...

  21. 27.3.17
    Mediator Pattern

    The Mediator Pattern encapsulates how a set of objects interact, promoting...

  22. 27.3.18
    Memento Pattern

    The Memento Pattern captures and restores an object's internal state without...

  23. 27.3.19
    Observer Pattern

    The Observer Pattern defines a one-to-many dependency between objects so...

  24. 27.3.20
    State Pattern

    The State Pattern enables an object to modify its behavior based on its...

  25. 27.3.21
    Strategy Pattern

    The Strategy Pattern allows for the selection of an algorithm at runtime,...

  26. 27.3.22
    Template Method Pattern

    The Template Method Pattern defines the skeleton of an algorithm in a...

  27. 27.3.23
    Visitor Pattern

    The Visitor Pattern is a design pattern that separates an algorithm from the...

  28. 27.4
    Choosing The Right Pattern

    Choosing the right design pattern depends on evaluating problem types and...

  29. 27.5
    Anti-Patterns

    Anti-patterns are ineffective solutions to common problems in software...

  30. 27.6
    Real-World Examples Of Design Patterns

    This section provides various real-world use cases of design patterns in...

  31. 27.7
    Best Practices And Pitfalls

    This section outlines best practices for effectively using design patterns...

What we have learnt

  • Design patterns are reusable solutions to common software design issues.
  • There are three main categories of design patterns: Creational, Structural, and Behavioral.
  • Choosing the right design pattern depends on factors like problem type, reusability, maintainability, and coupling.

Key Concepts

-- Design Pattern
A general repeatable solution to a commonly occurring problem in software design.
-- Creational Patterns
Patterns that focus on object creation mechanisms.
-- Structural Patterns
Patterns that deal with the composition of classes and objects.
-- Behavioral Patterns
Patterns that emphasize communication between objects.
-- AntiPatterns
Common but ineffective solutions that may lead to negative outcomes in software design.

Additional Learning Materials

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