circle.h

#ifndef CIRCLE_H
#define CIRCLE_H

class Circle
{
private:
    double radius;
    double pi;
public:
    Circle() //Default Constructor
    { radius = 1.0; pi = 3.14159; }

    Circle(double r) //Constructor which accepts value for radius
    { radius = r; pi = 3.14159; }

    void setRadius(double);

    double getRadius();
    double getArea();
    double getCircumference();
};
#endif