1. (6 pts) Java has interfaces Comparable and Comparator. As discussed in class, what is the main advantage of Comparator? 2. (6 pts) We can use a comparator in our own code, but often we use our comparators with what useful Java class? 3. (6 pts) What is the signature (name and parameters) of the method that all Comparator objects must have? 4. (6 pts) What is the signature (name and parameters) of the method that all Comparable objects must have? 5. (6 pts) If we wish to sort some class C using Comparable, then the method required by Comparable will be located