Derive a cylinder class frrom circle class. Cylinder should have a private float

Question

Derive a cylinder class frrom circle class. Cylinder should have a private floating point memebr height, constructor, surface area function. Accessor function for height. Data members private

Base class:

class circleType
{
public:
void setRadius (double r) ;

double getRadius();

double area ();

double circumference();

circleType (double r=0);

private:
double radius;

};

void circleType::setRadius (double r)
{
if (r >= 0)
radius = r;
else
radius = 0;
}
double circleType::getRadius()
{
return radius;
}

double circleType::area()
{
return 3.1416 * radius * radius;
}

double circleType::circumference()
{
return 2 * 3.1416 * radius;
}

circleType::circleType(double r)
{
setRadius(r);
}


My code so far:

Class Cylinder : public cirlcleType
{
private:
float height;
public:


cylinderType(float b) circleType(a)
{
setH(b);
}

void setH(float height)
{
h=height;
}
float getH()
{
return h;
}




int main()
{
circleType a;
a.setR(1.5);
cout << "Radius"<<r<<endl;
cylinderType b;
b.setH(12.2)
cout<<"Height"<<h<<endl;
return 0;
}

Explanation / Answer

Please rate...

Program:

======================================================

#include<iostream>
using namespace std;


class circleType
{
    public:
    void setRadius (double r) ;
    double getRadius();
    double area ();
    double circumference();

    circleType (double r=0);

    private:
    double radius;

};

void circleType::setRadius (double r)
{
    if (r >= 0)
    radius = r;
    else
    radius = 0;
}
double circleType::getRadius()
{
    return radius;
}

double circleType::area()
{
    return 3.1416 * radius * radius;
}

double circleType::circumference()
{
    return 2 * 3.1416 * radius;
}

circleType::circleType(double r)
{
    setRadius(r);
}


//Cylinder class

class Cylinder:public circleType
{
    private:
    float height;
    public:
    Cylinder(double h=0);
    void setHeight(double h);
    double getHeight();
    double surfaceArea();
};
Cylinder::Cylinder(double h)
{
    setHeight(h);
}
void Cylinder::setHeight(double h)
{
    height=h;
}
double Cylinder::getHeight()
{
    return height;
}
double Cylinder::surfaceArea()
{
    return ((2*area())+(height*circumference()));
}



int main()
{
circleType a;
a.setRadius(1.5);
double r=a.getRadius();
cout<<"Radius: "<<r<<endl;
Cylinder b;
b.setRadius(1.5);
b.setHeight(12.2);
double h=b.getHeight();
cout<<"Height: "<<h<<endl;
cout<<"Surace Area= "<<b.surfaceArea();
return 0;
}

===========================================================

Sample output:

Related Questions

Navigate

• Browse (All)
• Browse D
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.