Implementing the Enumeration Interfaces

class Person
   {
       public string FirstName { get; set; }
       public string LastName { get; set; }
       public Person(string firstName, string lastName)
       {
           FirstName = firstName;
           LastName = lastName;
       }
       public override string ToString()
       {
           return FirstName + " " + LastName;
       }
   }
   class People : IEnumerable<Person>
   {
       Person[] people;
       public People(Person[] people)
       {
           this.people = people;
       }
       public IEnumerator<Person> GetEnumerator()
       {
           for (int i = 0; i < people.Length; i++)
           {
               yield return people[i];
           }
       }
       IEnumerator IEnumerable.GetEnumerator()
       {
           return GetEnumerator();
       }
   }

public IEnumerator<Person> GetEnumerator()
        {
            for (int i = 0; i < people.Length; i++)
            {
                yield return people[i];
            }
        }
        IEnumerator IEnumerable.GetEnumerator()
        {
            return GetEnumerator();
        }

public override GetEnumerator()
{
 //blah blah
}