Concrete Class

Question:
What is a concrete class?

Answer:
A class that is neither derived from another class nor is meant to serve as the base for other classes is a concrete class. Concrete classes have no virtual member functions or protected members.

They are widely used in object-based languages (such as Ada83). However, even in object oriented languages such as C++, they are still useful: string, complex, and vector are examples of concrete classes in C++. The opposite of a concrete class is an abstract class.

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