//This program computes circle and sphere facts
//Illustrating formatting of output
//also illustrates use of input validation loop
//Carol Conway
#include <iostream>
#include <iomanip>
#include <cmath>
using namespace std;
int main()
{
    const double PI = 3.1415926;
    double radius;
    double areaCircle, circumCircle, volumeSphere, areaSphere;
    cout << "What is the radius of your circle and sphere? ";
    cin >> radius;
    while ( radius <= 0)
    {
        cout << "Please enter a positive number for the radius ";
        cin >> radius;
    }
    areaCircle = PI *radius *radius;
    circumCircle = 2* PI * radius;
    volumeSphere = (4./3.)*PI * pow(radius, 3);
    areaSphere = 4* PI * pow(radius, 2);

    cout << setprecision(2) << fixed;
    //cout << setprecision(2);

    cout << "Output without using left and right defaults to the right \n";
    cout  << setw(20) <<  "Radius "  << setw(15) << radius << endl;
    cout  << setw(20) <<  "Area of Circle "  << setw(15) << areaCircle << endl;
    cout  << setw(20) <<  "Volume of Sphere "  << setw(15) << volumeSphere << endl;
    cout  << setw(20) <<  "Surface area Sphere "  << setw(15) << areaSphere << endl;

    cout << "\nFields lined up perfectly with string left justified and numbers right justified\n";
    cout << left << setw(20) <<  "Radius "              << right << setw(15) << radius << endl;
    cout << left << setw(20) <<  "Area of Circle "      << right << setw(15) << areaCircle << endl;
    cout << left << setw(20) <<  "Volume of Sphere "    << right << setw(15) << volumeSphere << endl;
    cout << left << setw(20) <<  "Surface area Sphere " << right << setw(15) << areaSphere << endl;
    return 1;
}