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();

}

Multiple Inheritance

Program to demonstrate Multiple Inheritance :-

#include<iostream>

#include<conio.h>

class base1

{

   int p,q;

     public:

     void base1_get()

      {

         cout<<"Enter Value of P :";

           cin>>p;

           cout<<"Enter Value of Q :";

           cin>>q;

        }

     void base1_show()

      {

          cout<<"\nData of Base 1";

         cout<<"\nP = "<<p;

           cout<<"\nQ = "<<q;

        }

  };

class base2

{

   int r,s;

     public:

     void base2_get()

      {

         cout<<"Enter Value of R :";

           cin>>r;

           cout<<"Enter Value of S :";

           cin>>s;

        }

     void base2_show()

      {

         cout<<"\nData of Base 2";

           cout<<"\nR = "<<r;

           cout<<"\nS = "<<s;

        }

  };

class derived:public base1,public base2

{

   int a,b;

     public:

     void derived_get()

      {

         cout<<"Enter Value of A :";

           cin>>a;

           cout<<"Enter Value of B :";

           cin>>b;

        }

     void derived_show()

      {

         cout<<"\nData of Derived";

           cout<<"\nA = "<<a;

           cout<<"\nB = "<<b;

        }

  };

void main()

{

   derived d;

     d.base1_get();

     d.base2_get();

     d.derived_get();

     clrscr();

     d.base1_show();

     d.base2_show();

     d.derived_show();

     getch();

  }

Single Level Inheritance

Program to demonstrate Single Level Inheritance :-

#include<iostream.h>

#include<conio.h>

class base

{

int a,b;

public:

void base_get()

{

cout<<"\nEnter Value of A: ";

cin>>a;

cout<<"\nEnter Value of B: ";

cin>>b;

}

void base_show()

{

         cout<<"\nBASE CLASS DATA ";

cout<<"\nA = "<<a;

cout<<"\nB = "<<b;

}

};

class derived:public base

{

int p,q;

public:

void derived_get()

{

cout<<"\nEnter Value of P:  ";

cin>>p;

cout<<"\nEnter Value of Q:  ";

cin>>q;

}

void derived_show()

{

cout<<"\nDERIVED CLASS DATA ";

cout<<"\nP=  :"<<p;

cout<<"\nQ=  :"<<q;

}

   };

void main()

{

derived d;

d.base_get();

d.derived_get();

d.base_show();

d.derived_show();

getch();

}