Help with Default Constructor Causing error

[pixilz]

I have a class called MyEmployee it's purpose is to store different information about the employees. Anyway the program works fine as long as I give the employee information when I create the class object. If I try to create the object without any extra information the default constructor doesn't work correctly... or something... and the compiler treats that object differently. The compiler error I have been getting is "Unresolved External Class Symbol." My code for the class is below. (The bottom portion of the code is where the class is ran)Any help with this problem would be greatly appreciated.

Note: I heavily commented the area causing the problem to make it easier to locate.

  #include "MyEmployee.h"

const double FEDTAX = 0.2;
const double STATETAX = 0.075;
const double OVERPAY = 1.5;
const double ONE = 1;
const int OVERTIME = 40;

MyEmployee::MyEmployee(void)
{
	_employeeNumber = 0;
	_name = "John Doe";
	_streetAddress = "N/A";
	_phoneNumber = "N/A";
	_hourlyWage = 0.0;
	_hoursWorkedThisWeek = 0.0;
}

MyEmployee::MyEmployee(int en, string n, string sa, string pn, double hw, double hwtw)
{
	_employeeNumber = en;
	_name = n;
	_streetAddress = sa;
	_phoneNumber = pn;
	_hourlyWage = hw;
	_hoursWorkedThisWeek = hwtw;
}
MyEmployee::~MyEmployee()
{
}

void MyEmployee::SetEmployeeNumber(int x)
{
	_employeeNumber = x;
}

int MyEmployee::GetEmployeeNumber(void)
{
	return _employeeNumber;
}

void MyEmployee::SetName(string x)
{
	_name = x;
}

string MyEmployee::GetName(void)
{
	return _name;
}

void MyEmployee::SetStreetAddress(string x)
{
	_streetAddress = x;
}

string MyEmployee::GetStreetAddress(void)
{
	return _streetAddress;
}

void MyEmployee::SetPhoneNumber(string x)
{
	_phoneNumber = x;
}

string MyEmployee::GetPhoneNumber(void)
{
	return _phoneNumber;
}

void MyEmployee::SetHourlyWage(double x)
{
	_hourlyWage = x;
}

double MyEmployee::GetHourlyWage(void)
{
	return _hourlyWage;
}

void MyEmployee::SetHoursWorkedThisWeek(double x)
{
	_hoursWorkedThisWeek = x;
}

double MyEmployee::GetHoursWorkedThisWeek(void)
{
	return _hoursWorkedThisWeek;
}

double MyEmployee::CalcPay(void)
{
	if(_hoursWorkedThisWeek <= OVERTIME)
	{
		return double((_hoursWorkedThisWeek * _hourlyWage) * (ONE-(FEDTAX + STATETAX)));
	} else {
		return double((((_hoursWorkedThisWeek - OVERTIME) * (_hourlyWage * OVERPAY )) + (OVERTIME * _hourlyWage)) * (ONE-(FEDTAX + STATETAX)));
	}
}

void MyEmployee::ReadData(ifstream& x)
{

}

void MyEmployee::WriteData(ofstream& x)
{

}



/*
{
private:
	int _employeeNumber;
	string _name;
	string _streetAddress;
	string _phoneNumber;
	double _hourlyWage;
	double _hoursWorkedThisWeek;

public:
	Employee(void);
	Employee(int, string, string, string, double, double);
	void setEmployeeNumber(int);
	int getEmployeeNumber(void);
	void setName(string);
	string getName(void);
	void setStreetAddress(string);
	string getStreetAddress(void);
	void setPhoneNumber(string);
	string getPhoneNumber(void);
	void setHourlyWage(double);
	double getHourlyWage(void);
	void setHoursWorkedThisWeek(double);
	double getHoursWorkedThisWeek(void);
};
*/



const string WELCOME = "\n--------------------------------Dead Beats Inc.--------------------------------";
const string BUSINESS = "Truly Inconceivable Morgue of Undertown";
const string LINES = "-------------------------------------------------------------------------------";
const string EMPNAME = "Pay to ";
const string EMPPAY = ".................................................. $";
const string EMPHOURS = "Hours worked: ";
const string EMPWAGE = "Hourly Wage: ";
const string INFO = "Employee Information";
const string ADDRESS = "Employee address: ";
const string PHONE = "Employee phone number: ";
const string NUMBER = "Employee number: ";
const string END = "                           END OF EMPLOYEES";

const string WELCOMEMSG = "This program has 3 options:\n1 - Create a data file.\n2 - Read data from file and display paychecks.\n3 - Exit Program.\n";
const string WELCOMEMSG2 = "Please enter <1> <2> or <3>: ";
const string ERRORMSG1 = "You entered an invalid number, please enter a new value.";
const string WRITTEN = "The file has been created and written too...";

const string FILENAME = "NewTxtFile.txt";

const string PA1 = "1";
const string PA2 = "2";
const string PA3 = "3";

const int FIXED = 2;

const int EMPLOYEENUMBER = 3;

void main()
{
	Menu();
}

void Menu()
{
	string answer = "";
	string temp = "";
	bool error = false;

	vector<MyEmployee> emp;
	ofstream txtFile;
	ifstream txtFi;

	cout << WELCOMEMSG << WELCOMEMSG2;
	do{
	getline(cin, answer);
	cin.clear();
	if(answer == PA1 || answer == PA2 || answer == PA3)
	{
		error = false;
	} else {
		cout << ERRORMSG1 << endl << WELCOMEMSG2;
		error = true;
	}
	}while(error == true);
	if(answer == PA1)
	{

		MyEmployee joe(37, "Joe Brown", "123 Main St.", "123-6788", 45, 10.00);
		MyEmployee sam(21, "Sam Jones", "45 East State", "661-9000", 30, 12.00);
		MyEmployee mary(15, "Mary Smith", "12 High Street", "401-8900", 40, 15.00);

		emp.push_back(joe);
		emp.push_back(sam);
		emp.push_back(mary);

		txtFile.open(FILENAME);

		for(int i = 0; i < EMPLOYEENUMBER; i++)
		{
			txtFile << emp.at(i).GetEmployeeNumber() << endl;
			txtFile << emp.at(i).GetName() << endl;
			txtFile << emp.at(i).GetStreetAddress() << endl;
			txtFile << emp.at(i).GetPhoneNumber() << endl;
			txtFile << emp.at(i).GetHoursWorkedThisWeek() << endl;
			txtFile << emp.at(i).GetHourlyWage() << endl;
		}
		cout << WRITTEN << endl;
		system("PAUSE");
		return;
	} else if (answer == PA2) {
	{
                //THE ERROR HAS SOMETHING TO DO WITH THIS DECLARATION OF THE MyEmployee CLASS
                //THE ERROR HAS SOMETHING TO DO WITH THIS DECLARATION OF THE MyEmployee CLASS
                //THE ERROR HAS SOMETHING TO DO WITH THIS DECLARATION OF THE MyEmployee CLASS
                //THE ERROR HAS SOMETHING TO DO WITH THIS DECLARATION OF THE MyEmployee CLASS
		MyEmployee joe2();
		MyEmployee sam2();
		MyEmployee mary2();

		emp.push_back(joe2());
		emp.push_back(sam2());
		emp.push_back(mary2());
                //THE ERROR HAS SOMETHING TO DO WITH THIS DECLARATION OF THE MyEmployee CLASS
                //THE ERROR HAS SOMETHING TO DO WITH THIS DECLARATION OF THE MyEmployee CLASS
                //THE ERROR HAS SOMETHING TO DO WITH THIS DECLARATION OF THE MyEmployee CLASS
                //THE ERROR HAS SOMETHING TO DO WITH THIS DECLARATION OF THE MyEmployee CLASS

		txtFi.open(FILENAME);

		for(int i = 0; i < EMPLOYEENUMBER; i++)
		{
			txtFi >> temp;
			emp.at(i).SetEmployeeNumber(atoi(temp.c_str()));
			txtFi >> temp;
			emp.at(i).SetName(temp);
			txtFi >> temp;
			emp.at(i).SetStreetAddress(temp);
			txtFi >> temp;
			emp.at(i).SetPhoneNumber(temp);
			txtFi >> temp;
			emp.at(i).SetHoursWorkedThisWeek(atof(temp.c_str()));
			txtFi >> temp;
			emp.at(i).SetHourlyWage(atof(temp.c_str()));
			system("CLS");
			PrintCheck(emp.at(i));
		}
		cout << endl << LINES << endl << END << endl << LINES << endl << endl << endl;
		system("PAUSE");
		return;
	}
	} else {
		cout << endl;
		system("PAUSE");
		return;
	}
}

void PrintCheck(MyEmployee x)
{
	cout << WELCOME << endl << endl;
	cout << EMPNAME << x.GetName() << EMPPAY << setprecision(FIXED) << fixed << x.CalcPay() << endl << endl;
	cout << BUSINESS << endl << LINES << endl;
	cout << EMPHOURS << x.GetHoursWorkedThisWeek() << endl;
	cout << EMPWAGE << x.GetHourlyWage() << endl;
	cout << endl << LINES << endl;
	cout << INFO << endl << LINES << endl;
	cout << NUMBER << x.GetEmployeeNumber() << endl;
	cout << ADDRESS << x.GetStreetAddress() << endl;
	cout << PHONE << x.GetPhoneNumber() << endl;
	cout << endl << endl << endl;
	system("PAUSE");
	system("CLS");
}

[JLBorges]

MyEmployee joe2(); // this declares a function joe2() which returns MyEmployee

MyEmployee joe2 ; // this defines joe2, a default-initialized object of type MyEmployee

MyEmployee sam2{} ; // C++11: this too defines a default-initialized object of type MyEmployee

Either:

//MyEmployee joe2();
MyEmployee joe2 ;

//emp.push_back(joe2());
emp.push_back( joe2 );

Or, simply:
emp.push_back( MyEmployee() );

[pixilz]

Thank you that helped a ton!