Класс Employee, проблемы реализации

class Employee
{
public:
    string Name(string);
    string SurName(string);
    int zarplata();
 
    void setName(string);
    void setSurName(string);
    void setZarplata(string);
 
    string getName();
    string getSurName();
    string getZarplata();
};

#include "stdafx.h"
#include <iostream>
#include "Employee.h"
 
using namespace std;
 
//следующие три строчки кода вообще лубуда какая то не правильная (
Employee::Name(string)
{
        
}

Employee::Employee()
{
        
}
void setName()
{
    cout << "Hello\n" <<endl;
}

class Employee
{
private:
    string Name;
    string SurName;
    int zarplata;
public:

    string Name(string);

Employee( string Name, string SurName, int zarplata );

Employee( const string &Name, const string &SurName, int zarplata );

void setName(string);
void setSurName(string);
void setZarplata(string);
 
string getName();
string getSurName();
string getZarplata();

#include "stdafx.h"
#include <iostream>
#include "Employee.h"
 
using namespace std;
 
Employee::Employee(string name,string surName,int zarplata)
{
        setName("Anton");
        setSurName("Cherepanov");
        setZarplata(15000);
}

Employee::Employee(string name,string surName,int zarplata)
{
        setName("Anton");
        setSurName("Cherepanov");
        setZarplata(15000);
}

class Employee
{
public:
    Employee( std::string, std::string, int );
    void setName( std::string );
    void setSurname( std::string );
    void setSalary( int );
    std::string getName();
    std::string getSurname();
    int getSalary();
private:
    int salary;
    std::string name, surName;
};

Employee::Employee( std::string thisName, std::string thisSurname, int thisSalary )
{
    setName( thisName );
    setSurname( thisSurname );
    setSalary( thisSalary );
}
 
void Employee::setName( std::string thisName )
{
    name = thisName;
}
 
void Employee::setSurname( std::string thisSurname )
{
    surName = thisSurname;
}
 
void Employee::setSalary( int thisSalary )
{
    if ( thisSalary < 0 )
    {
        std::cout << "Zarplata ne mojet bit` otricatel`noi i poetomu budet ravna 0." << std::endl;
        salary = 0;
    }
    else
        salary = thisSalary;
}
 
std::string Employee::getName()
{
    return name;
}
 
std::string Employee::getSurname()
{
    return surName;
}
 
int Employee::getSalary()
{
    return salary;
}

Employee(const std::string &, const std::string &, int);

Employee::Employee(string name,string surName,int zarplata)
{
                setName(name);
                setSurName(surName);
                setZarplata(zarplata);
}

Employee(string = " ",string = " ",int = 0)

Employee person("вася","Пупкин","10000");

#include "stdafx.h"
#include <iostream>
#include "Employee.h"
 
using namespace std;
 
Employee::Employee(string Name,string SurName, int Salary)
{
        setName(Name);
        setSurName(SurName);
        setSalary(Salary);
}
void Employee::setName(string thisName)
{
    Name = thisName;
}
void Employee::setSurName(string thisSurName)
{
    Name = thisSurName;
}
void Employee::setSalary(int thisSalary)
{
    if(Salary < 0 )
    {
        cout << "Зарплата не может быть отрицательной!" << endl;
        Salary = 0;
    }
    else
        Salary = thisSalary;
}
 
string Employee::getName()const
{
    return Name;
}
string Employee::getSurName()const
{
    return SurName;
}
int Employee::getSalary()const
{
    return Salary;
}
 
 
    Employee P1;
    P1.setName("Anton");

Employee P1("Anton","Cherepanov",10000);
P1.getSurname();

    
        Employee P1("Anton","Cherepanov",10000);
    P1.setName("Roma");
    
    cout << "Зарплата равна " << P1.getName() << endl;

#include <iostream>
 
using std::cout;
using std::endl;
 
#include "Employee.h"
 
 
int main()
{
    setlocale(LC_ALL, "rus");
    Employee emp1("Sergey","M", 32000);
    Employee emp2("Evgeniya","M", 25000);
    
    
    cout << "Ãîäîâîé çàðàáîòîê ñîòðóäíèêà" << " " << emp1.getName() << " " << emp1.getSurname() 
    << " " << emp1.getSalary() << endl;
    cout << "Ãîäîâîé çàðàáîòîê ñîòðóäíèêà" << " " << emp2.getName() << " " << emp2.getSurname() 
    << " " << emp2.getSalary() << endl;  
    system("PAUSE");
    return 0;
}