About Question com.enthuware.ets.scjp.v6.2.291 :

[ETS User]

Hi,

This question asks for concrete classes that can be used to store key - value pairs, and is giving SortedMap and TreeMap as correct answers. Since the question is asking for concrete classes, and SortedMap is an interface and not a class, wouldn't be SortedMap a wrong answer?????

Thansk!

[Guest]

Argh!!

My fault, I misread the review, sorry.

Please delete this post. Thanks.