A Simple Class

Exercise

Write a simple class called Cube. The object should calculate the total area and   the volume based on the side measurement. If the program supplies a side  equal or lower than 0, reset the side to 1. Create an empty constructor and an  empty destructor. Implement the object in different files.

Header File: cube.h

#ifndef CUBE_H

#define CUBE_H

class Cube

{public: 

Cube(); 

~Cube();

 void setSide(double s);

 double getSide(); 

double Area(); 

double Volume();

 void Properties();private:

 double Side;};

#endif

Source File cube.cpp

#include <iostream.h>

#include "cube.h"

Cube::Cube(){}

Cube::~Cube(){}

void Cube::setSide(double s)

{ Side = s <= 0 ? 1 : s;

}double Cube::getSide()

{ return Side;

}double Cube::Area()

{ return 6 * Side * Side;}

double Cube::Volume()

{ return Side * Side * Side;}

void Cube::Properties(){ 

cout << "Characteristics of this cube"; 

cout << "\nSide   = " << getSide(); 

cout << "\nArea   = " << Area(); 

cout << "\nVolume = " << Volume() << "\n\n";

}

Main File: Exo.cpp

#include "cube.h"

void main()

{ 

Cube cube;

 cube.setSide(-12.55); 

cube.Properties();

 Cube de; 

de.setSide(28.15);

 de.Properties();

}

Here is an example of the result:

Characteristics of this cubeSide   = 1

Area   = 6

Volume = 1

Characteristics of this cubeSide   = 28.15

Area   = 4754.53

Volume = 22306.7