A CLASS CIRCLE STORES AS A DATA MEMBER THE RADIUS AND AREA OF CIRCLE AND TWO CONSTRUCTOR FUNCTIONS. THE FIRST ACCEPTS ARGUMENT AS TH RADIUS AND CALCULATE ITS AREA. THE SECOND IS A COPY CONSTRUCTOR THAT INCREASES THE AREA OF CIRCLE BY 1 AND CALCULATE ITS AREA. ALSO, INCLUDE ANOTHER MEMBER FUNCTION TO DISPLAY RADIUS AND AREA OF THE CIRCLE.

#include<iostream.h>

#include<conio.h>

class circle

{

      float area,radius;

      public:

      circle(float rad)

      {

               radius=rad;

               area=3.14*radius*radius;

       }

       circle(circle & c)

       {

                radius=c.radius;

                area=c.area;

       }

       void display ()

       {

                cout<<”Radius:”<<radius;

                cout<<”Area:”<<area;

       }

};

void main()

{

        clrscr();

        circle ob(4.0);

        circle ob1(ob);

        ob.display();

        getch();

}