Collections · interview question
In what scenario would you use containsKey() over get() when working with a HashMap?
Multiple choiceEasychapter-4-curatedpremiumcollectionsmap-interface-and-hashmap
Answer and explanation
Correct answer
A. When you want to check if a key exists without retrieving its value.
Why
containsKey() is used to check if a specific key exists in the map, whereas get() retrieves the value associated with a key. Use containsKey() when the existence of a key is more important than its value.
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