Create and test a Set class to represent a classical set. Your sets should support the following methods: Set(elements) Create a set (elements is the initial list of items in the set). addElement(x) Adds x to the set. deleteElement(x) Removes x from the set, if present. If x is not in the set, the set is left unchanged. member(x) Returns true if x is in the set and false otherwise. intersection(set2) Returns a new set containing just those elements that are common to this set and set2. union(set2) Returns a new set containing all elements that are in this set, set2, or both. subtract(set2) Returns a new set containing all the elements of this set that are not in set2.
