Comment the following code, explaining what it does. Replace "here" and "there" with meaningful strings. Try running it (easiest in a shell) and see if you are correct. import java.util.*: public class C { public static void main (String[] args) { Set s = new HashSet (): for (String a: args) if (!s.add(a)) System.out.println("here: " + a): System.out.println(s.size () + " there: " + s): } }