потоки сохранение и считывания файла [C++]

[ArniLand]

Программа не правильно выдает результат, во втором случае где идут по второму кругу Lastname, name... программа не выводит их на экран

Помогите исправить пожалуйста проблему:

//Students.h
#include <iostream>


using namespace std; 

class Students
{
public:
	char Lastname[100];
	char Name[100];
	char Course[100];
    char StudentCard[100];
    char CityOfArrival[100];
	Students();
	~Students();
	
	friend ostream &operator<<(ostream &stream, Students obj);
	friend istream &operator>>(istream &stream, Students obj);
};
//.cpp
#include "stdafx.h"
#include "Students.h"

Students::Students()
{
	Lastname[0] = '\0';
	Name[0] = '\0';
	Course[0] = '\0';
	StudentCard[0] = '\0';
	CityOfArrival[0] = '\0';
}

Students::~Students()
{}
//main.cpp
#include "stdafx.h"
#include "Students.h"
#include <iostream>
#include <fstream>
using namespace std;

istream &operator>>(istream &stream, Students obj)
{
	cout << "Please, write the characteristics: \n";
	cout << "Lastname: \n";
	stream >> obj.Lastname;
	cout << "Name: \n";
	stream >> obj.Name;
	cout << "Course: \n";
	stream >> obj.Course;
	cout << "Student Card: \n";
	stream >> obj.StudentCard;
	cout << "City of arrival: \n";
	stream >> obj.CityOfArrival;
	return stream;
}


ostream &operator<<(ostream &stream, Students obj)
{
	stream <<"Lastname :" << obj.Lastname << "\n";
	stream <<"Name :" << obj.Name << "\n";
	stream <<"Course: "<< obj.Course << "\n";
	stream <<"Student Card: "<< obj.StudentCard  << "\n";
	stream <<"Course: "<< obj.CityOfArrival<< "\n";
	return stream;
}

int main()
{
	Students obj;
	cin >> obj;
	cout << obj;
	ofstream out("study");
	if(!out)
	{
		cout << "Can't open a file. \n";
		return 1;
	}
	out << obj.Lastname << "\n";
	out << obj.Name << "\n";
	out << obj.Course << "\n";
	out << obj.StudentCard << "\n";
	out << obj.CityOfArrival << "\n";
	
	out.close();

	ifstream in("study");
	if(!in)
	{
		cout << "Can't open a file. \n";
		return 1;
	}

	in >> obj.Lastname;
	in >> obj.Name;
	in >> obj.Course;
	in >> obj.StudentCard;
	in >> obj.CityOfArrival;
	
	cout <<"Lastname :" << obj.Lastname << "\n";
	cout <<"Name :" << obj.Name << "\n";
	cout <<"Course: "<< obj.Course << "\n";
	cout <<"Student Card: "<< obj.StudentCard  << "\n";
	cout <<"Course: "<< obj.CityOfArrival<< "\n";
	
	in.close();
	
	return 0;
}

[ozo]

class Students

struct Students

Было бы логичней.

char Lastname[100];

std::string же

	in >> obj.Lastname;
	in >> obj.Name;
	in >> obj.Course;
	in >> obj.StudentCard;
	in >> obj.CityOfArrival;
	
	cout <<"Lastname :" << obj.Lastname << "\n";
	cout <<"Name :" << obj.Name << "\n";
	cout <<"Course: "<< obj.Course << "\n";
	cout <<"Student Card: "<< obj.StudentCard  << "\n";
	cout <<"Course: "<< obj.CityOfArrival<< "\n";

Зачем тогда было перегружать << и >> ?

istream &operator>>(istream &stream, Students obj)
{
	cout << "Please, write the characteristics: \n";
	cout << "Lastname: \n";
	stream >> obj.Lastname;
	cout << "Name: \n";
	stream >> obj.Name;
	cout << "Course: \n";
	stream >> obj.Course;
	cout << "Student Card: \n";
	stream >> obj.StudentCard;
	cout << "City of arrival: \n";
	stream >> obj.CityOfArrival;
	return stream;
}

Тут проблема, сделали бы всё на std::string её бы не было.
Я даже скажу точнее, проблема в stream >> obj.some;

return 0;

А это уже лишнее