Introduction
Improve your code with design patterns
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What you should know
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1. Design Patterns
What is a design pattern?
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2. Creational Design Patterns
What are creational design patterns?
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3. The Builder Pattern
Avoiding complex constructors
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Recognize where to use the Builder pattern
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Implement a complete Builder pattern
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Improving the Builder pattern
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Challenge: The Builder pattern
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Solution: The Builder pattern
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4. The Singleton Pattern
When to use the Singleton pattern
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Implementing the Singleton pattern
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Thread safety with the Singleton pattern
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Challenge: The Singleton pattern
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Solution: The Singleton pattern
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5. The Prototype Pattern
Understand the Prototype pattern
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Implement the Prototype pattern
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Handling mutability
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Challenge: The Prototype pattern
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Solution: The Prototype pattern
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6. The Factory Method
Understand the Factory Method pattern
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Implement the Factory Method pattern
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Improve the Factory Method pattern with functional programming
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Challenge: The Factory Method pattern
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Solution: The Factory Method pattern
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7. Abstract Factories
Understand abstract factories
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Recognize where to use abstract factories
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Create factories for families of objects
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Implement the complete Abstract Factory pattern
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Challenge: The Abstract Factory pattern
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Solution: The Abstract Factory pattern
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8. Structural Design Patterns
What are structural design patterns?
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9. The Adapter Pattern
Understand the Adapter pattern
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Implement the object Adapter pattern
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Implement the class Adapter pattern
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Challenge: The Adapter pattern
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Solution: The Adapter pattern
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10. The Bridge Pattern
Understand the Bridge pattern
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Implement the Bridge pattern
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Challenge: The Bridge pattern
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Solution: The Bridge pattern
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11. The Composite Pattern
Understand the Composite pattern
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Implement the Composite pattern
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Challenge: the Composite pattern
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Solution: the Composite pattern
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12. The Decorator Pattern
Understand the Decorator pattern
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Change behavior dynamically with a decorator
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Add multiple decorations to an object
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Challenge: The Decorator pattern
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Solution: The Decorator pattern
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13. The Facade Pattern
Understand the Facade pattern
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Implement the Facade pattern
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Challenge: The Facade pattern
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Solution: The Facade pattern
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14. The Flyweight Pattern
Understand the Flyweight pattern
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Implement the Flyweight pattern
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Challenge: The Flyweight pattern
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Solution: The Flyweight pattern
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15. The Proxy Pattern
Understand the Proxy pattern
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Recognize where to use the Proxy pattern
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Use a proxy to create objects on demand
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Use a proxy to control access
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Challenge: The Proxy pattern
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Solution: The Proxy pattern
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16. Behavioral Design Patterns
What are behavioral design patterns?
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17. The Chain of Responsibility Pattern
Understand the Chain of Responsibility pattern
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Recognize where to use the Chain of Responsibility pattern
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Implement a successor chain
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Challenge: The Chain of Responsibility pattern
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Solution: The Chain of Responsibility pattern
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18. The Command Pattern
Understand the Command pattern
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Implement the Command pattern
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Use the Command pattern to delay operations
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Challenge: The Command pattern
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Solution: The Command pattern
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19. The Interpreter Pattern
Understand the Interpreter pattern
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Creating an interpreter for a language
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Interpreting a variable
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Challenge: The Interpreter pattern
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Solution: The Interpreter pattern
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20. The Iterator Pattern
Understand the Iterator pattern
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Create an Iterable
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Create an Iterator
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Challenge: The Iterator pattern
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Solution: The Iterator pattern
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21. The Mediator Pattern
Understand the Mediator pattern
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Avoid tight coupling between objects
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Create a Mediator object
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Challenge: The Mediator pattern
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Solution: The Mediator pattern
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22. The Memento Pattern
Understand the Memento pattern
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Restoring an object's state
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Challenge: The Memento pattern
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Solution: The Memento pattern
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23. The Observer Pattern
Understand the Observer pattern
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Implementing an Observer
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Implementing an Observable
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Challenge: The Observer pattern
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Solution: The Observer pattern
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24. The State Pattern
Understand the State pattern
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Avoiding multiple if-else statements
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Allowing an object to change its behavior
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Challenge: The State pattern
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Solution: The State pattern
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25. The Strategy Pattern
Understand the Strategy pattern
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Implement the Strategy pattern
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Improve the Strategy pattern
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Challenge: The Strategy pattern
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Solution: The Strategy pattern
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26. The Template Method Pattern
Understand the Template Method pattern
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Implement the Template Method pattern
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Challenge: The Template Method pattern
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Solution: The Template Method pattern
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27. The Visitor Pattern
Understand the Visitor pattern
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Implement the Visitor pattern
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Challenge: The Visitor pattern
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Solution: The Visitor pattern
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