static void Main(string[] args)
        {
            FormGroup Year12FB = new FormGroup("Year12FB", "Faye Blairs");

            Year12FB.AddStudent("Intouch", DateTime.Parse("06/07/2004"), true);
            Year12FB.AddStudent("Prem", DateTime.Parse("31/12/2004"), true);
            Year12FB.AddStudent("Emeline", DateTime.Parse("01/09/2004"), false);
            Year12FB.AddStudent("Toy", DateTime.Parse("01/02/2004"), true);
            Year12FB.AddStudent("Ankit", DateTime.Parse("01/09/2004"), true);

            ///For admin login username:admin password:admin123
            MainMenu(Year12FB);
        }
        static public void adminMenu(FormGroup Year12)
        {
            Console.WriteLine("ADMIN LOGIN PAGE");
            Console.WriteLine("Username: "******"Password: "******"admin" && password == "admin123")
            {
                Console.Clear();
                string Input       = "";
                int    NumberInput = 0;
                while (Input != "EXIT")
                {
                    Console.WriteLine("ADMIN PAGE: ACCESS GRANTED");
                    Console.WriteLine("Press 1 to add student");
                    Console.WriteLine("Press 2 to delete student");
                    Console.WriteLine("Press 3 to modify student attendance");
                    Console.WriteLine("Type EXIT to go back");


                    Input = Console.ReadLine();


                    if (int.TryParse(Input, out NumberInput))
                    {
                        if (NumberInput == 1)
                        {
                            Console.Clear();
                            string   name;
                            string   DOB;
                            string   gender;
                            DateTime DOB1;
                            bool     boolGender;
                            Console.WriteLine("Please enter the student's name");
                            name = Console.ReadLine();
                            Console.WriteLine("Please enter their date of birth  dd/mm/yyyy");
                            DOB = Console.ReadLine();
                            DateTime.TryParse(DOB, out DOB1);
                            if (DateTime.TryParse(DOB, out DOB1) == false)
                            {
                                Console.WriteLine("Invalid input");
                                break;
                            }

                            Console.WriteLine("Please enter their gender   true for male|false for female");
                            gender = Console.ReadLine();
                            bool.TryParse(gender, out boolGender);
                            if (bool.TryParse(gender, out boolGender) == false)
                            {
                                Console.WriteLine("Invalid input");
                                break;
                            }


                            Year12.AddStudent(name, DOB1, boolGender);
                            Console.Clear();
                        }
                        else if (NumberInput == 2)
                        {
                            Console.Clear();
                            for (int i = 0; i < Year12.getTotalStudent(); i++)
                            {
                                Console.WriteLine(Year12.getStudent(i).getStudentName() + "\t" + " | " + Year12.getStudent(i).getStudentDOB() + "\t" + " | " + Year12.getStudent(i).getStudentGender());
                            }
                            Console.WriteLine("Please enter the name of the student you want to delete");
                            string deletedStudent = Console.ReadLine();
                            for (int i = 0; i < Year12.getTotalStudent(); i++)
                            {
                                if (deletedStudent == Year12.getStudent(i).getStudentName())
                                {
                                    Year12.deleteStudent(i);
                                    Console.Clear();
                                }
                            }
                        }
                        else if (NumberInput == 3)
                        {
                            Console.Clear();
                            DateTime date1;
                            Console.WriteLine("Type the name of the student you want to modify");
                            string studentName = Console.ReadLine();
                            for (int i = 0; i < Year12.getTotalStudent(); i++)
                            {
                                if (studentName == Year12.getStudent(i).getStudentName())
                                {
                                    string date;
                                    Console.WriteLine("Type in the date you want to modify");
                                    Console.WriteLine("dd/mm/yyyy in this format");
                                    date = Console.ReadLine();

                                    DateTime.TryParse(date, out date1);
                                    if (DateTime.TryParse(date, out date1) == false)
                                    {
                                        Console.WriteLine("Invalid input");
                                        break;
                                    }
                                    Year12.getStudent(i).setStudentAttendanceOnDate(date1);
                                    Console.Clear();
                                }
                            }
                        }
                        else
                        {
                            Console.Clear();
                            Console.WriteLine("Invalid input");
                        }
                    }
                    else
                    {
                        Console.Clear();
                        Console.WriteLine("Invalid input");
                    }
                }
            }
        }