C++ Simple Class Implementation using Header

(The following example project was created using Microsoft Visual Studio 2008 Win32 Console Application)

example header (“robot.h”):

//ifndef and define recommended to prevent double compilation
#ifndef ROBOT_H
#define ROBOT_H

//notice methods, variables and properties are defined, but functionality is not specified within
class robot
        robot(); //constructor
        ~robot(); //destructor

        int PublicProperty();

        void DoWork();

        int _privatevalue;



class implementation of header (“robot.cpp”):

#include "StdAfx.h"
#include "robot.h"
#include "cstdlib"
#include "ctime"

#ifndef ROBOT
#define ROBOT

//not necessary to specify class again in this case



int robot::PublicProperty() {
    return _privatevalue;

void robot::DoWork() {
//do something
_privatevalue = "somevalue";

class usage example (“main.cpp”):

#include "stdafx.h"
#include <iostream>
#include "robot.h"

using namespace std;

int main()
robot rtwo; //notice no constructor

rtwo.DoWork(); //change internal private value to "somevalue"
cout << rtwo.PublicProperty(); //should output "somevalue"
int pause;
cin >> pause;

return 0;

About Ronnie Diaz

Ronnie Diaz is an enterprise software engineer responsible for front-end and back-end development for companies in many industries. Heavily involved in cloud development, online retail, e-commerce and electronic ordering, fulfillment and customer relational systems.

Posted on June 3, 2011, in Programming & Development and tagged , , , , . Bookmark the permalink. Leave a comment.

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