First code for Classes and Objects

How do I even begin this code? The general instructions given are so not newbie friendly.... =( im stuck...

I would like to work on the code myself but I need help starting it up.....


PLEASE DO NOT PASTE FULL CODE ON THIS MSG BOARD! THATS NOT WHAT I'M ASKING FOR.... I just need the help in getting it started.

Thanks guys!

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Create a project in which you add a class called Automobile (both a .h and a .cpp file for the class definition).

The class should have four data members (make of the auto [string], model of the college [string], the year that the auto was manufactured [int], and the purchase price of the auto [doulbe]).

Have the main function declared a third file (the .cpp file with the same name as the project).

Have a single constructor with all four values for the data members sent as arguments and assign these values inside the constructor. Also have get and set functions for each data member.

Finally have a function that prints out all of the info about an object from the class. Inside the main function use the constructor two times to create two objects with all four data members sent to the constructor.

For each object call the function with the object to output all of the information about the object. In total you should have three files: (1) the .cpp file with the main function, and (2 and 3) the two files that were created when you added a new class. In the .h file (called the header file) you should have the definitions of all of the data members.

In addition the header for each of the member functions should be in the .h file. The actual definitions of the functions should be included the the .cpp file with the same name as the class that was created.

I can't imagine what more you could want here. You are told, explicitly, exactly what member variables (two strings, and int, and a double) your class should contain. You are told exactly what functions to write, and what they should do, and even where to call them.

Post what you've got so far for your 3 source files.

eg.. (this code doesn't run, it's how you start it)

Code:

---

//Automobile.h

#ifndef AUTOMOBILE_H
#define AUTOMOBILE_H

#include <string>

class Automobile
{
public:
  Automobile(); //constructor

private:
  std::string model;
};

#endif


//Automobile.cpp

#include "Automobile.h"

Automobile::Automobile() //constructor
{

}


//ProjectName.cpp

#include "Automobile.h"

int main()
{

}

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You should be able to do the rest, or come back and post when you're stuck.

That's too much code, Dae, IMO. It's also not quite correct.

Quote:

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Originally Posted by Daved

That's too much code, Dae, IMO. It's also not quite correct.

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I don't think thinks so. He still needs to improve the constructor, and add the member variables and methods. I removed the usage (would have needed fixing anyway).

It's not full code, so it can't be used, it's just a reference of how it could it look to start out. I think that's appropriate.

Edit: By not quite correct did you mean I messed up the includes? lol fixed.

>> By not quite correct did you mean I messed up the includes?
No, but it looks like you removed the part I was thinking of, anyway. Your variable declarations included parentheses, which made them function declarations. Not a big deal, I was just trying to put a little doubt in the OP's mind so he or she thought a little harder about what you did instead of just grabbing it and running.

Quote:

---

Originally Posted by Daved

>> By not quite correct did you mean I messed up the includes?
No, but it looks like you removed the part I was thinking of, anyway. Your variable declarations included parentheses, which made them function declarations. Not a big deal, I was just trying to put a little doubt in the OP's mind so he or she thought a little harder about what you did instead of just grabbing it and running.

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I'm gonna put that in my signature. People should have doubt about anything I say. Yeah I was trying to remove parts so it wasn't too much, but it's not very much code. I always hated that, in other languages I can or am forced to use default constructor (or initializer) parentheses, but cannot in C++. I actually wrote that as pseudo-code, then converted it cause I didn't want to confuse the OP (especially about inclusion guards).

Ok this is what I have so far for the header file;

Code:

---

//Automobile.h
#include <iostream>
using std::cout;
 
 


#ifndef AUTOMOBILE_H
#define AUTOMOBILE_H
 
#include <string>
using std::string;
 
//Automobile class defenition
class Automobile
{
public:
Automobile(); //constructor


private:
std::string model;
std::string make;
};

---

Quote:

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Originally Posted by CrKrJak

Ok this is what I have so far for the header file;

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Okay, so follow your instructions step by step. The instructions mention four data members, but at the moment you only have two. The instructions mention getter and setters for each data members, but at the moment you have none. The instructions state that you should have "a single constructor with all four values for the data members sent as arguments", but at the moment you have a default constructor instead.

Also, your header inclusion guards should start the very top of the header file, and you are missing the #endif. You do not need to #include <iostream> at this point, so do not so do. Oh, and avoid using declarations, except within a restricted scope, in header files, i.e., remove the using std::cout and using std::string.

You should indent your code properly.