#include <algorithm>
#include <iostream>
#include <iterator>
#include <vector>
#include <string>

class Employee
{
public:
    Employee(std::string const &name, unsigned age);
    std::string const &name() const;
    unsigned age() const;

private:
    std::string mName;
    unsigned mAge;
};

Employee::Employee(std::string const &name, unsigned age)
    : mName(name)
    , mAge(age)
{
}

std::string const &Employee::name() const
{
    return mName;
}

unsigned Employee::age() const
{
    return mAge;
}

std::ostream &operator <<(std::ostream &out, Employee const &employee)
{
    return out << "Employee { name: " << employee.name() << ", age: " << employee.age() << " }";
}

int main()
{
    std::vector<Employee> employees;
    employees.push_back(Employee("John", 23));
    employees.push_back(Employee("Anna", 22));

    copy(employees.begin(), employees.end(), std::ostream_iterator<Employee>(std::cout, "\n"));
}