Why does the java.util.Set interface not provide a get(Object o) method? [closed]

Answer 1

The problem is: Set is not for "getting" objects, is for adding and test for presence. I understand what are you looking for, I had a similar situation and ended using a map of the same object in key and value.

EDIT: Just to clarify: http://en.wikipedia.org/wiki/Set_(abstract_data_type)