Question: Implement the following Java method: static boolean containsAll(List a, List b); Such that it returns true if all of the items in a are also

Implement the following Java method: static boolean containsAll(List a, List b); Such that it returns true if all of the items in a are also in b, false otherwise. Your implementation should run in O(n) time, assuming that a, b each contain n items; to accomplish this you will likely want to utilize an intermediate data structure:

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