Answer to Question #247968 in C++ for Kumar

Question

Modify the program no. 1 as follows:

Derive a class named as CYLINDER from CIRCLE class. Take necessary

data & member functions for this class to calculate the volume of the

cylinder. Show the result by accessing the area method of circle and

rectangle through object of rectangle class and the area of circle and volume

method of cylinder class through the objects of cylinder class.

Answer 1

#include<iostream>
#include<cmath>
using namespace std;
class  CIRCLE{
	private:
		double rad;
	public:
		CIRCLE(){
			
		}
		 CIRCLE(double r){
			rad = r;
		}
		void setData(double r){
			rad = r;
		}
	
		double area(){
		
		return 3.142 * pow(rad, 2);
		
		}
		
		
};


class CYLINDER: CIRCLE{
	private:
	double	height;
	public:
		CYLINDER(double rad,  double h){
			setData(rad);
			height = h;
		}
		
		void volume(){
		
		
			cout<<"Volume is: "<<area() * height<<endl;
		}
	
};


int main(){
	


CYLINDER cy(7, 10);
cy.volume();
	
}