Core Java · interview question
What happens if you try to retrieve a value from a HashMap using a key that is not present?
Multiple choiceMediumchapter-4-curatedpremiumcore-javacode-reading-with-collections
Answer and explanation
Correct answer
B. Returns null
Why
If a key is not present in the HashMap, the get() method returns null, indicating that no mapping exists for the specified key.
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