MAIN.CXX

The standard C++ output and input classes are declared within the iostream.h include file.
We can use the iostream class cout to print to the standard output.
Include files found locally are often indicated with quotes for clarity.

#include <iostream.h>
#include "sphere.h"

int main (void)
	{	
	sphere mySphere;
	mySphere.setRadius(10.0);
	cout << "mySphere has radius: " << mySphere.getRadius() << endl;
	};