class

[lzone554]

Question:http://upload.lsforum.net/users/public/j41956RWw138.jpg

My problem is how to correct my format like the "function volume" with the correct code?

  #include<iostream>
using namespace std;

const double PI = 3.14159265;

class Cone{
	public:
		Cone(double r,double h){
		radius=r;
		height=h;}
		
	double volume (){
	return 1/3*height*height*radius*radius*PI;
	}
	
	private:
		double radius;
		double height;
};

int main()
{
Cone coneA (3, 4);
cout << "Volume of Cone A is: " << coneA.volume() << endl;
return 0;
}

[TheIdeasMan]

Hi,

Use the correct formula.

on line 13, integer division happens with 1/3. Always put numbers before and after the decimal place to force them to use double.

[Thomas1965]

Your formular was wrong.

double volume ()
{
  return 1.0 / 3.0 * PI * radius * radius * height;
}

[lzone554]

thanks for your responses, I get it.