Hierarchical inheritance

Hierarchical Inheritance:-In the Hierarchical Inheritance there is only base class and all
the derived classes are derived from this base class.
Example:-
class A
{
A()
{
Cout<<”I m in A”;
}
};
Class B:public A

{
B()
{
Cout<<”I m in B”;
}
};
class C:public A
{
C()
{
Cout<<”I m in C”;
}
};
Class D:public A
{
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