Chapter 15: Problem 22

Fill-in-the-Blank An overridden base class function may be called by a function in a derived class by using the __________ operator.

Short Answer

Expert verified

Answer: Scope resolution (::) operator.

Step by step solution

Understand the concepts of a base class and a derived class

A base class is a general class that contains the common attributes and functions that can be inherited by other more specific classes, known as derived classes. A derived class is a class that inherits the properties and functions of a base class. In object-oriented programming, the relationship between the base class and the derived class is called inheritance.

Understand function overriding

Function overriding is a concept in object-oriented programming where a derived class can provide its own implementation of a function that is already defined in its base class. This allows the derived class to inherit the properties and functions of the base class while also having the ability to change the behavior of a particular function.

Understand how to call an overridden base class function from a derived class

When a derived class has overridden a function from its base class, there might be situations where you still want to call the original implementation of the function that resides in the base class. In this case, you need to use a special operator to access the base class function from the derived class.

Identify the operator for calling overridden base class functions

The operator used to call an overridden base class function from a derived class function is the "scope resolution" operator (::). This operator allows you to specify the base class and the function you want to call, thereby making it possible to access the original implementation of the function even though it has been overridden in the derived class.

Complete the fill-in-the-blank problem with the correct operator

Now that we have identified the operator for calling an overridden base class function from a derived class function, we can complete the fill-in-the-blank problem: An overridden base class function may be called by a function in a derived class by using the scope resolution (::) operator.

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Fill-in-the-Blank An overridden base class function may be called by a function in a derived class by using the __________ operator.

Short Answer

Step by step solution

Understand the concepts of a base class and a derived class

Understand function overriding

Understand how to call an overridden base class function from a derived class

Identify the operator for calling overridden base class functions

Complete the fill-in-the-blank problem with the correct operator

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