Loops Practise(Area of circle)

#include <iostream.h>
int main ()
{
    float radius;
    float area;
    cout <<"Enter Radius (0 To Quit) = ";
    cin >> radius;
    cout <<endl;
    while (radius>0)
    {
        area=3.14*(radius*radius);
        cout <<"The Area Is = " << area <<endl;
        cout <<"\nEnter Radius (0 To Quit) = ";
        cin >> radius;
    } // end while
    return 0;

    }