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Which of these method of HashSet class is used to add elements to its object?

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Which of these method of HashSet class is used to add elements to its object?

(a) add()

(b) Add()

(c) addFirst()

(d) insert()

This question was addressed to me at a job interview.

The origin of the question is Java.util in chapter java.util – The Collections Framework of Java

1 Answer

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The correct option is (a) add()

For explanation: None.

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