static void Main(string[] args) { Console.WriteLine("========== WelCome TO Business Information =========="); int choice; EmployeeDomain employeeDomain = new EmployeeDomain(); ProjectDomain projectDomain = new ProjectDomain(); do { Console.WriteLine("\n======= Menu ======="); Console.WriteLine("1.Add Employee"); Console.WriteLine("2.View Employees"); Console.WriteLine("3.Add Project"); Console.WriteLine("4.View Projects"); Console.WriteLine("0.Exit"); Console.Write("\nEnter Your choice : "); choice = Convert.ToInt32(Console.ReadLine()); switch (choice) { case 1: Console.WriteLine("\n====== Add Employee ====="); employeeDomain.addEmolpyee(); break; case 2: Console.WriteLine("\n====== View Employees ====="); employeeDomain.ViewEmployee(); break; case 3: Console.WriteLine("\n====== Add Project Details ====="); projectDomain.addProject(); break; case 4: Console.WriteLine("\n====== View All Project Details ====="); projectDomain.viewAllProject(); break; case 0: return; default: Console.WriteLine("Invalid choice"); break; } } while (i > -1); }