// Ch. 12 Demo Program #5
// Mr. Minich
// purpose - to illustrate the use of a class with 3 files (the main source file,
//				the header file (interface) and an implementation source file.

#include <iostream.h>
#include "M:\C++ Programming\AP classes\apstring.h"
#include "student.h"

int main()
{
	Student teachersPet;
	Student classHacker;

	teachersPet.GetNameAndGradeLevel();

	classHacker.GetNameAndGradeLevel();

	return 0;
}

// ****************************************************************
// student.h header file (the interface of the Student class)

#include "M:\C++ Programming\AP classes\apstring.h"

class Student
{
public:
	void GetNameAndGradeLevel();

private:
	apstring name;
	int gradeLevel;
	char grade;
};

// ****************************************************************
// student.cpp source file (the implementation of the Student class)

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

void Student::GetNameAndGradeLevel()
{
	cout << "Enter a name and grade level: ";
	cin >> name;
	cin >> gradeLevel;
}

// Note that you must use the MS Visual C++ menu command "Project/Add to Project/Files..."
// 	to include the student.cpp file to your project workspace before executing this program.

// Realize that the implementation for a class is often not able to be viewed by other programmers
//	since that code is precompiled into object code. The interface (student.h) must be accessible
//	by those who want to use the class since other programmers need to know what the public functions
//	and member variables are. Technically, the private section doesn't have to be seen by such programmers
//	but even if a hacker knew what the private member variable names are, he still can't access it from 
//	a main function.