Collection Framework

[Anonymous]

ON the site www.jchq.net there is this question:
Which of the following are true?
1) The Set interface is designed to ensure that implementing classes have unique members
2) Classes that implement the List interface may not contain duplicate elements
3) The Set interface is designed for storing records returned from a database query
4) The Map Interface is not part of the Collection Framework
The answer given is only 1.
But I think 4 is also correct, because Map does not comes under Collection Interface and it is itself a interface.
What does collection framework means?
can anybody explain this
Thanks in advance
Shikhar

[hemanshow]

Its Collections Framework and not Collection Framework. :-) Note the 's' in Collections.
Collection, List, Map, Set are interfaces of Collecttions Framework.
Collections is public class with usefull methods to facilitate synchronized access for Collections Framework.
Sun sometimes ends up creating confusing names.