Multiple Inheritance

Multiple Inheritance:-I n the multiple Inheritance there will be many base classes and there is only one derived class which derives from all the base classes.

Example:-
class A
{
A()
{
Cout<<”I m in A”;
}
};
Class B
{
B()
{
Cout<<”I m in B”;
}
};
class C
{
C()
{
Cout<<”I m in C”;
}
};
Class D:public A,public B,public C
{
D()
{
Cout<<”I m in D”;
}
};
Voi d main()
{
D d;
}

Output:-
I m in A
I m in B
I m in C
I m in D

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Single Inheritance

Single Inheritance:-In the Single Inheritance there will only one base class and only one derived class.It should be like this.
Example:-
class A
{
A()
{
Cout<<”I m in A”;
}
};
Class B:public A
{
B()
{
Cout<<”I m in B”;
}
};
Voi d main()
{
B b;
}

Output:-I m in A
I m in B

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C++ Description

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Difference between C and C++

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What is C++ Constructor, and How to use Constructor with Inheritance

A constructor is a special type of function whose functionality is to intialize the data members of a class at a time of object creation.so that it is also called automatic intialization of objects.

Properties of a constructor:-

1.)It is invoked automatically at a time of the creation of object.so that the data members are intialized.

2.)It has neither return type nor void type.

3.)The name of a constructor and class should be identical.

4.)It should be declared on a public section.

Types of aconstructor:-

1.)Default Constructor.

2.)Copy Constructor.

3.)Parametrised constructor

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