Union Write and test a recursive method that computes the union of two sets. The union of two sets consists of the elements that are in one set or both of the sets. For example, the union of {6, 3, 8,...

Union

Write and test a recursive method that computes the union of two sets. The union of two sets consists of the elements that are in one set or both of the sets. For example, the union of {6, 3, 8, 1} and {1, 9, 2, 18, 8, 19, 32, 11} is {6, 3, 8, 1, 9, 2, 18, 19, 32, 11}. You may assume that the sets are implemented as integer arrays with no duplicates.