Mastering Java: The Ultimate 2026 All-In-One Quiz to Excel in 'Thinking in Java

Question: 1 / 510

Does MapEntry use the key’s hashCode() for hashing?

Yes

MapEntry does use the key's hashCode() method for hashing as it is used to determine the index in the hash table where the key-value pair will be stored. Option B is incorrect because if the hash code is not used for hashing, then the key-value pair will be stored in a default index, which can result in slower retrieval time. Option C is incorrect because it implies that only String keys use the hashCode() method, which is not true as any object can override this method. Option D is incorrect because the hashCode() method is used for all keys, including null keys.

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No

Only if the key is a String

Only for null keys

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