SOFTWARE DESIGN
DESIGN PATTERNS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Using an iterator may be more efficient than going through elements of some specialized collections directly.
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True
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False
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -The Iterator interface is used to iterate over the elements in a collection ( List, Set, or Map ). It is used to retrieve the elements one by one and perform operations over each one if need be.
Detailed explanation-2: -Ability to remove elements from Collections. Ability to move forward and backward using next() and previous() . Ability to check if there more elements or not by using hasNext() . 08-Mar-2014
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