Creating new Java programs! Question 1:Challenge In Java, using arrays, implement from scratch (without using library classes) a set of instances of one of the following. Include operations of union, intersection, and relative complement. Document and test your set class. 1. integers 2. natural numbers (non-negative integers) 3. instances of char 4. strings 5. pairs of natural numbers 6. pairs consisting of a char and a natural number (The union of two sets A and B, is the set of all items that are either in A or in B. The intersection is the set of items in both A and B. The complement of B with respect to A is the set of all items that are in A but not in B.) Your matn method should declare and initialize a couple of set objects, and for each set operation should call a method that performs the operation, e.g, as in the following code: Set C=A. union (B); System out print (C.toString0)