public static void Main()
{
Person p = new Person("John", "Smith", "Bristol");
Student s = new Student("Brian", "Cartman", "London", "99678", "CS");
Lecturer l = new Lecturer("Fred", "Bloggs", "Birmingham", "N12");
Console.WriteLine("\nInstantiating a person p, student s and lecturer l");
Console.WriteLine($"Person p: {p} ");
Console.WriteLine($"Student s: {s} ");
Console.WriteLine($"Lecturer l: {l} ");
Console.WriteLine("\nBasic tests, showing values after instantiating basic objects:");
Console.WriteLine($"Student no: {s.GetStudentNo()} ");
Console.WriteLine($"Student address: {s.GetAddress()} ");
Console.WriteLine($"Person address: {p.GetAddress()} ");
Console.WriteLine($"Lecturer address: {l.GetAddress()} ");
Console.WriteLine($"Lecturer office: {l.GetOfficeNo()} ");
// ---
Console.Write(
"\nNow, copying the object and updating first name, demonstrating reference semantics in objects, i.e.,");
Console.WriteLine("the update of first name in q affects p, too");
var q = p;
Console.WriteLine($"Person p: {p} ");
Console.WriteLine($"Person q: {q} ");
q.FName = "Will";
Console.WriteLine($"Person p: {p} ");
Console.WriteLine($"Person q: {q} ");
Console.WriteLine(
"\nHere we use the overriden ToString() method, implemented as a generic serialisation method:");
Console.WriteLine($"Student: {s} ");
Console.WriteLine($"Student: {s} ");
Console.WriteLine($"Lecturer: {l} ");
}
