Program of Type Conversion Between Base to Derive Class

#include <iostream.h>

#include<conio.h>

class Base

{

private:

    double b;

public:

    Base(double x)

    {

     b=x;

    }

    void display()

    {

cout<<"\n Base Class Value Is"<<b;

    }

    double getValue()

    {

return b;

    }

};

class derive

{

private:

    double d;

public:

    derive(Base y)

    {

     d=y.getValue() * 1.6987;

    }

    void display()

    {

      cout << "\n derive Value Is"<<d;

    }

};

main()

{

clrscr();

    Base m1(100);        // Source Class

    derive k1 = m1;         // Destination Class

    m1.display();

    k1.display();

    cout << endl;

   getch();

}