public Student(Student nst)
{
Lname = nst.Lname;
Fname = nst.Fname;
Bday = nst.Bday;
card = new StudCard(nst.card.serial);
}
public Student(string lname, string fname, DateTime bday, StudCard Card)
{
//this.PIB = PIB;
Lname = lname;
Fname = fname;
Bday = bday;
card = Card;
}