C++ Programming - OOPS Concepts - Discussion

Friend is a function not constructor.

We can pass the value as a parameter of the constructor, but it's not a type of constructor.

The friend is not a constructor because it is a function.

Friend is a function.

The friend is not a constructor because friend is an access specifier and they used in asp.net.

What is constructor explain with example?

Constructor is used to initialize the objects and the name of the constructor is same as the name of the class. And we can say construct the values of data members.

for eg. class demo
{
int a;
demo()
{
a=0
}
};

In this example, demo is the class and the name with parentheses is the constructor.
Whenever we create the object of the class demo the constructor will be called and assign value 0 to variable a.

What are the keys using inheritance?

Constructors, as we know have the same name as the class name. They can be three types of constructors namely:
1) Default constructor e.d constr() which has no parameters.
2) Parameterised constructors constr(x,y) that have some parameters passed to it.
3) Copy constructor constr(&object of constructor) that take input as the object of constructor type or rather copies the value of the constructor.

Friend functions exist but friend constructor don't exist in object oriented concept.

Friend constructor is not a type of constructor.