5 Questions
What is composition over inheritance in object-oriented programming?
Composition over inheritance is the principle that classes should favor polymorphic behavior and code reuse by their composition (by containing instances of other classes that implement the desired functionality) over inheritance from a base or parent class.
What is the role of interfaces in composition over inheritance?
Interfaces are used in composition over inheritance to represent the behaviors that the system must exhibit. Classes implementing these interfaces are then added to business domain classes as needed to achieve the desired system behaviors.
How does composition over inheritance promote code reuse?
Composition over inheritance promotes code reuse by favoring the use of composition, where classes contain instances of other classes, to implement desired functionality instead of inheriting from a base or parent class.
What is the book that discusses the relationship between composition over inheritance and object composition?
The book 'Design Patterns' (1994) discusses the relationship between composition over inheritance and object composition.
Do composition over inheritance and inheritance work together?
Yes, composition over inheritance and inheritance typically work hand-in-hand. While composition over inheritance is preferred for code reuse, inheritance is often needed to create new components.
Test your knowledge on composition over inheritance, a principle in object-oriented programming that promotes code reuse and polymorphic behavior through composition. Explore the benefits and considerations of using composition over inheritance and assess your understanding of this important concept in OOP.
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