What is the difference between abstract and concrete classes in programming?
Abstract classes cannot be instantiated and are meant to be subclassed, while concrete classes can be instantiated.
Can you give me an example of each?
Sure! An abstract class could be 'Animal' with a method 'makeSound()', while a concrete class could be 'Dog' that implements 'makeSound()'.
Why would I use an abstract class instead of just a concrete class?
Abstract classes allow you to define a common interface and shared behavior for subclasses, promoting code reusability.
Are there any drawbacks to using abstract classes?
Yes, they can add complexity and may lead to a rigid class hierarchy if not used carefully.
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