Why does List implement IList, ICollection and IEnumerable?

Question

If you go to definition of List you would see the following:

public class List : IList, ICollection, IEnumer         


        

Answer 1

Yes it would. IList itself implements the other two.

The object browser shows you all the interfaces the class implements, whether directly (IList) or indirectly (ICollection, IEnumerable, through IList).