Help with Classes

[crawfoosh]

Im wondering on how i would display the "area" in main?


#include <iostream>
#include <string>
using std::cout;
using std::cin;
using std::endl;
using std::string;

class Circle
{ private:
double radius;

public:
void setRadius (double r)
{radius=r;}
double getArea()
{return 3.14*pow(radius,2);}

int main () {


return 0;
}

[Mybowlcut]

How can you get as far as to write a class, several #include and using statements (which involve the objects that answer your question) and ask how to print something to the screen? Are you reading from a book or did you get this code off someone else?

Please use code tags. You can find info on them in the FAQ.

[crawfoosh]

got this from the book..just kind of having trouble with classes and such..srry

[Tronfi]

Create an instance of that class, set it a radius and then print it:

int main(){
    Circle c;
    c.setRadio(34);
    cout<<c.getArea();
}

[Mybowlcut]

But, ideally, if you've gotten this far, the book should really have explained how to do what you're asking to do. Can I ask what the book is?