public string name;a
        public int age;
        public bool ID;
        private int salary;
        public void Staff()
        {
            Console.WriteLine("enter your name");
            name = Console.ReadLine();
            Console.WriteLine("enter your age : ");
            age = Convert.ToInt32(Console.ReadLine());
            Console.WriteLine("enter your ID:");
            ID = Console.ReadLine();
            Console.WriteLine("enter your salary:");
            income = Convert.ToInt32(Console.ReadLine());

        }