using System.Data.Common;
using System.Numerics;
using System.Text;
using System.Transactions;

public class Student
{
    //TODO Task 2.1 Ensure firstname, middlename and lastname can only be modified from within the class
    //TODO Task 2.2 Allow middlename to contain null values
    public string FirstName { get; private set; }
    public string? MiddleName { get; private set; }
    public string LastName { get; private set; }

    public Student(string first, string middle, string last)
    {
        FirstName = first;
        MiddleName = middle;
        LastName = last;
    }
    //END OF TODO Task 2.1 and 2.2
    
    //TODO Task 2.3 Create overloaded constructor that accepts only first name and last name
    public Student(string first, string last)
    {
        FirstName = first;
        MiddleName = null;
        LastName = last;
    }
    //END OF TODO Task 2.3
}
class Program
{
    static void Main()
    {
        //TODO Task 2.4 Create an instance of the Student class called studentA with a firstname, middlename and lastname
        var studentA = new Student("Ben", "Sam", "Smith");
        //END OF TODO Task 2.4
    }
}