static void Main(string[] args)
        {
            Person p = new Person();

            p.SetName("Kawser");
            p.SetAge(27);
            p.SetDob("29th april");
            p.SetAddress("Mirpur Dhaka");

            p.GetName();
            p.GetAge();
            p.GetDob();
            p.GetAddress();
            p.ShowDetails();
        }