When the same function exists in both the base class and the derived class the function in the base class will be executed?

Suppose, the same function is defined in both the derived class and the based class. Now if we call this function using the object of the derived class, the function of the derived class is executed. This is known as function overriding in C++.

What happens if the base and derived class contains definition of a function with same prototype?

What happens if the base and derived class contains definition of a function with same prototype? Compiler reports an error on compilation. Only base class function will get called irrespective of object. Only derived class function will get called irrespective of object.

When a derived class has defined one of the member functions of the base class that base function is said to be?

Explanation: The member function which is defined in base class and again in the derived class, is overridden by the definition given in the derived class. This is because the preference is given more to the local members. When derived class object calls that function, definition from the derived class is used. 2.

When function has the same prototype in both base class and derived class then it is known as?

Discussion Forum

When the base class and derived class have member functions with exactly the same name same return type and same arguments list then it is said to be?

When the base class and derived class have member functions with exactly the same name, same return-type, and same arguments list, then it is said to be function overriding.

What happens when a derived class inherits a base class privately?

Answer: With private inheritance, public and protected member of the base class become private members of the derived class. That means the methods of the base class do not become the public interface of the derived object. However, they can be used inside the member functions of the derived class.

What happens if the base and derived class contains definition of a?

What happens if the base and derived class contains definition of a function with same prototype? Compiler reports an error on compilation. Only base class function will get called irrespective of object. Base class object will call base class function and derived class object will call derived class function.

What will happen if a class is not having any name?

What happens if a class does not have a name? A class without a name will not have a destructor. The object is made so constructor is required but the destructor is not.

When only one class is derived from a single base class such a derivation of a class is known as?

Single Inheritance
// doesn’t inherit access to private data members. 1. Single Inheritance: In single inheritance, a class is allowed to inherit from only one class. i.e. one sub class is inherited by one base class only.

When implementations of functions are not provided in a base class such a class is called as?

Explanation: Pure virtual function is a virtual function which has no definition/implementation in the base class. 3.

When a function is defined in the derived class with the same name and arguments in the function in the base class it is called?

When the base class method is redefined in the derived class, then it is called method overriding. The signature of the function in the base class and the derived class should be the same.

How are protected members of a base class access in the derived class when inherited privately in C Plus Plus?

If a class is derived privately from a base class, all protected base class members become private members of the derived class. Class A contains one protected data member, an integer i . Because B derives from A , the members of B have access to the protected member of A .

Does a derived class object contain a base class?

A derived class object “contains” a base class subobject in precisely the same way that it contains member subobjects for any non-static data members. Actually though, the example given in the question happens to be a special case: the “empty base class optimization”.

Is the constructor of a derived class called first?

1) Yes, bases are constructed first, then non-static data members, then the constructor of the derived class is called. The reason is so that the code in the constructor of this class can see and use a fully-constructed base. 2) Yes.

Is it illegal to make objects of one class member of another?

17 It is illegal to make objects of one class members of another class. A shows the same relationships as an organization chart. B describes “has a” relationships. C describes “is a kind of” relationships.