What is the output(TreeSet and sub set)? : Questions « Utility Classes « SCJP

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import java.util.TreeSet;

public class MainClass {
  public static void main(String[] argv) {
    TreeSet<String> s = new TreeSet<String>();
    TreeSet<String> subs = new TreeSet<String>();
    s.add("a");
    s.add("b");
    s.add("c");
    s.add("d");
    s.add("e");

    subs = (TreeSet) s.subSet("b", true, "d", true);
    s.add("g");
    s.pollFirst();
    s.pollFirst();
    s.add("c2");
    System.out.println(s.size() + " " + subs.size());

  }
}