Hierarchical Inheritance

Program to demonstrate hierarchical Inheritance :-

#include<iostream>

#include<conio.h>

class base

{

   int p,q;

     public:

     void base_get()

      {

         cout<<"Enter Value of P :";

           cin>>p;

           cout<<"Enter Value of Q :";

           cin>>q;

        }

     void base_show()

      {

          cout<<"\nData of Base";

         cout<<"\nP = "<<p;

           cout<<"\nQ = "<<q;

        }

  };

class derived1:public base

{

   int r,s;

     public:

     void derived1_get()

      {

         cout<<"Enter Value of R :";

           cin>>r;

           cout<<"Enter Value of S :";

           cin>>s;

        }

     void derived1_show()

      {

         cout<<"\nData of Derived1";

           cout<<"\nR = "<<r;

           cout<<"\nS = "<<s;

        }

  };

class derived2:public base

{

   int a,b;

     public:

     void derived2_get()

      {

         cout<<"Enter Value of A :";

           cin>>a;

           cout<<"Enter Value of B :";

           cin>>b;

        }

     void derived2_show()

      {

         cout<<"\nData of Derived2";

           cout<<"\nA = "<<a;

           cout<<"\nB = "<<b;

        }

  };

void main()

{

   derived1 d1;
derived2 d2;

   d1.base_get();

   d1.derived1_get();
  d2.base_get();

   d2.derived2_get();

   clrscr();

   d1.base_show();

   d2.base_show();

   d1.derived1_show();
  d2.derived2_show();

   getch();

}