class circle

$\{$

public:

void print $()$ const;

void setRadius $($double$)$;

void setCenter $($double$,$ double$)$;

void getCenter $($double&$,$ double&$)$;

double getRadius $()$;

double area $()$;

circle $()$;

circle $($double$,$ double, double$)$;

private:

double xCoordinate;

double yCoordinate;

double radius;

$\}$;

class cylinder: public circle

$\{$

public:

void print $()$ const;

void setHeight $($double$)$;

double getHeight $()$;

double volume$()$;

double area $()$;

cylinder $()$;

cylinder $($double$,$ double, double, double$)$;

private:

double height;

$\}$;