// Circle.h 

#ifndef CIRCLE_H
#define CIRCLE_H

#include <iostream>
#include <iomanip>
#include "Point.h"

class Circle : public Point {  // Circle eredita da Point
public:
   // costruttore di Circle
   Circle( double r = 0.0, int x = 0, int y = 0 );

   void setRadius( double );   // set raggio
   double getRadius() const;   // get raggio
   double area() const;        // calcolo area

private:
   double radius;
};

ostream &operator<<( ostream &, const Circle & );

#endif