Chapter 2, Problem 5P

The following is a short program that computes the volume of a sphere given the radius. It will compile and run, but it does not adhere to the program style recommended in Section 2.5. Rewrite the program using the style described in the chapter for indentation, adding comments, and appropriately named constants.

#include <iostream>

using namespace std;

int main()

{

double radius, vm;

cout << “Enter radius of a sphere.” << endl; cin >> radius;

vm = (4.0 / 3.0) * 3.1415 * radius * radius * radius;

cout << “ The volume is “ << vm << endl;

return 0;

}