static void Main(string[] args) { Console.WriteLine("Press 1 for part time employee or press 2 for full time employee"); var temp = Console.ReadLine(); char ans = Convert.ToChar(temp); if (ans == '1') { PartTimeEmployee emp1 = new PartTimeEmployee(); emp1.PartSalaryCal(); } else if (ans == '2') { FullTimeEmployee emp2 = new FullTimeEmployee(); emp2.FullSalaryCal(); } }