static void Main() { Console.WriteLine("What kind of student are you"); Console.WriteLine("1. School Student"); Console.WriteLine("2. College Student"); Console.WriteLine("Enter Your Choice"); int Choice = int.Parse(Console.ReadLine()); switch (Choice) { case 1: { Console.WriteLine("Enter Your details: in the order Class, RollNo, Full Name"); var SStud = new SchoolStudent(int.Parse(Console.ReadLine())); Console.WriteLine("The Details you entered are :"); SStud.DisplayDetails(); } break; case 2: { Console.WriteLine("Enter Your details: in the order Course, Year, RollNo, Full Name"); var CStud = new CollegeStudent(Console.ReadLine(), int.Parse(Console.ReadLine())); Console.WriteLine("The Details you entered are :"); CStud.DisplayDetails(); } break; default: Console.WriteLine("Error in choice"); break; } }