What is composition in programming?
Composition in programming is a design principle where a class is composed of one or more objects from other classes, allowing for code reuse and flexibility.
Can you give me an example of composition?
Sure! For instance, if you have a class Car
that uses an Engine
class, the Car
class can be composed of an Engine
object, allowing you to change the engine without modifying the car's code.
How does composition differ from inheritance?
Composition allows for more flexible code reuse by combining objects, while inheritance creates a tight coupling between a parent and child class, which can lead to rigidity.
When should I use composition over inheritance?
Use composition when you want to create complex types by combining simpler ones, especially when behaviors can change at runtime. It's often preferred for better maintainability.
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