Abstract classes
What is an abstract class? An abstract class is a class that has at least one pure virtual function. A pure virtual function in turn is a virtual function that does not have implementation and is declared by assigning by zero. An object of an abstract class cannot be implemented.
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Abstract classes
What is an "abstract class"? It is a class that has at least one pure virtual function. A "pure virtual function" in turn, is a "virtual function" that does not have implementation and is declared by assigning it the value of zero. An object of an abstract class cannot be implemented.Very well written!
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