static void Main(string[] args)
{
string contactType;
string name;
int age;
string address;
int contact_number;
while (true)
{
Console.WriteLine("Enter contactType [P]rofessor/[S]tudent):");
contactType = Console.ReadLine();
;
if ((contactType != "P") && (contactType != "S"))
{
Console.WriteLine("Valid values :[P]rofessor/[S]tudent");
Console.ReadLine();
break;
}
else
{
Console.WriteLine("Enter contact details below:");
Console.WriteLine("Enter name");
name = Console.ReadLine();
Console.WriteLine("Enter age");
age = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter Address");
address = Console.ReadLine();
Console.WriteLine("Enter contact number ");
contact_number = Convert.ToInt32(Console.ReadLine());
switch (contactType)
{
case "P":
Console.WriteLine("Professor created");
Professor p1 = new Professor(name, age, address, contact_number);
p1.displayProfessor();
Console.ReadLine();
break;
case "S":
Console.WriteLine("Student created");
Student s1 = new Student(name, age, address, contact_number);
s1.displayStudent();
Console.ReadLine();
break;
default:
Console.WriteLine("Invalid value");
break;
}
break;
}
}
}