#pragma once

class Cube {                                              // "Computer, this is what a Cube is."
    private:
        double height, width, depth;                      // It has a height, width and depth that I don't want
    public:                                               // any program to be able to mess with
        Cube(double height, double width, double depth);  // but programs can pass these to me during initialization.
        double volume() const;                            // And a Cube can be asked what it's volume is.
};