Question: Write java method (a) English Write a static Java method int[l reverse (int [] arr) that returns a new array containing the elements in arr

Write java method

(a) English Write a static Java method int[l reverse (int [] arr) that returns a new array containing the elements in arr in reverse order. The input array arr must not be changed. (b) English Write a static Java method containsDuplicates (ArrayList list) that returns true if (and only if) the list contains any duplicate elements. That is, the same integer occurs twice (or more) in the list

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