static void Main (string[] args) {
//For FreshMan
FreshMan newFreshMan = new FreshMan ("John Doe");
newFreshMan.Greet ();
newFreshMan.Display ();
//For Sophomore
Sophomore newSophomore = new Sophomore ("John Smith");
newSophomore.Greet ();
newSophomore.Display ();
//For Junior
Junior newJunior = new Junior ("Harihar");
newJunior.Greet ();
newJunior.Display ();
//For Senior
Senior newSenior = new Senior ("Kale");
newSenior.Greet ();
newSenior.Display ();
//For DoctoralStudent
DoctoralStudent newDoctoralStudent = new DoctoralStudent ("Hari Ray");
newDoctoralStudent.Greet ();
newDoctoralStudent.Display ();
//For MastersStudent
MastersStudent newMastersStudent = new MastersStudent ("Ab De Villiers");
newMastersStudent.Greet ();
newMastersStudent.Display ();
Console.ReadKey ();
}
