Which of these methods can be used to obtain set of all keys in a map? Options: A . &nbspgetAll() B . &nbspgetKeys() C . &nbspkeyall() D . &nbspkeySet()

Which of these methods

Question

Which of these methods can be used to obtain set of all keys in a map?

Options:

A . getAll()

B . getKeys()

C . keyall()

D . keySet()

Answer: Option D

keySet() methods is used to get a set containing all the keys used in a map. This

method provides set view of the keys in the invoking map.

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