cylinder.h

《c＋＋大学教程》源码

// Fig. 9.22: cylinder.h
// Cylinder class inherits from class Circle4.
#ifndef CYLINDER_H
#define CYLINDER_H

#include "circle4.h"  // Circle4 class definition

class Cylinder : public Circle4 {

public:

   // default constructor
   Cylinder( int = 0, int = 0, double = 0.0, double = 0.0 ); 
      
   void setHeight( double );  // set Cylinder's height
   double getHeight() const;  // return Cylinder's height 

   double getArea() const;    // return Cylinder's area
   double getVolume() const;  // return Cylinder's volume
   void print() const;        // output Cylinder

private:
   double height;  // Cylinder's height

}; // end class Cylinder

#endif

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