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Question:What is an Iterator?


Some of the collection classes provide traversal of their contents via a java.util.Iterator interface. This interface allows you to walk through a collection of objects, operating on each object in turn. Remember when using Iterators that they contain a snapshot of the collection at the time the Iterator was obtained; generally it is not advisable to modify the collection itself while traversing an Iterator.
asked Sep 13, 2013 in Java Interview Questions by anonymous
edited Sep 12, 2013
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