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Explain Which of these packages contain all the collection classes?

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Which of these packages contain all the collection classes? (a) java.lang (b) java.util (c) java.net (d) java.awt This question was posed to me during an interview. My doubt is from Collection Framework Overview topic in portion java.util – The Collections Framework of Java Select the correct answer from above options

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Correct answer is (b) java.util To explain I would say: None.

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