C++ Employee

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

using namespace std;

namespace Records
{

    Employee::Employee(const std::string &firstName, const std::string &lastName)
        : m_firstName(firstName), m_lastName(lastName), m_employeeNumber(-1),
          m_salary(DefaultStartingSalary), m_hired(false)
    {
    }

    void Employee::promote(int raiseAmount)
    {
        setSalary(getSalary() + raiseAmount);
    }

    void Employee::demote(int demeritAmount)
    {
        setSalary(getSalary() - demeritAmount);
    }

    void Employee::hire()
    {
        m_hired = true;
    }

    void Employee::fire()
    {
        m_hired = false;
    }

    void Employee::display() const
    {
        cout << "Employee: " << getLastName() << ", " << getFirstName() << endl;
        cout << "-------------------------" << endl;
        cout << (isHired() ? "Current Employee" : "Former Employee") << endl;
        cout << "Employee Number: " << getEmployeeNumber() << endl;
        cout << "Salary: $" << getSalary() << endl;
        cout << endl;
    }

    void Employee::setFirstName(const std::string &firstName)
    {
        m_firstName = firstName;
    }

    const std::string &Employee::getFirstName() const
    {
        return m_firstName;
    }

    void Employee::setLastName(const std::string &lastName)
    {
        m_lastName = lastName;
    }

    const std::string &Employee::getLastName() const
    {
        return m_lastName;
    }

    void Employee::setEmployeeNumber(int employeeNumber)
    {
        m_employeeNumber = employeeNumber;
    }

    int Employee::getEmployeeNumber() const
    {
        return m_employeeNumber;
    }

    void Employee::setSalary(int newSalary)
    {
        m_salary = newSalary;
    }

    int Employee::getSalary() const
    {
        return m_salary;
    }

    bool Employee::isHired() const
    {
        return m_hired;
    }

} // namespace Records