public Employee(int _ssn, string _name, int _age, decimal _salary, Department _dept, HireDate _hdate)
{
ssn = _ssn;
name = _name;
age = _age;
salary = _salary;
dept = _dept;
hdate = _hdate;
}
public Employee()
{
ssn = 1;
name = "Amal";
age = 25;
salary = 10000;
dept = new Department(10, "CS");
hdate = new HireDate(10, 10, 2010);
}