Is there a standard map sorted by values

Question

Tree Map is sorted by keys..Is there standard jdk map sorted by values ?

Answer 1

You can also use a method similar to the following:
private static final Collator PL_COLLATOR = Collator.getInstance(new Locale("PL"));
     public static <E> Map<E, String> sortMapByValue(Map<E, String> unordered) {
          Map<E, String> ret = new LinkedHashMap<E, String>();
          Set<Entry<E, String>> sort = new TreeSet<Entry<E, String>>(new Comparator<Entry<E, String>>() {
               public int compare(Entry<E, String> o1, Entry<E, String> o2) {
                    Entry<E, String> e1 = o1;
                    Entry<E, String> e2 = o2;
                    String s1 = e1.getValue();
                    String s2 = e2.getValue();
                    return PL_COLLATOR.compare(s1.toLowerCase(), s2.toLowerCase());
          sort.addAll(unordered.entrySet());
          for (Iterator<Entry<E, String>> iterator = sort.iterator(); iterator.hasNext();) {
               Entry<E, String> e = iterator.next();
               ret.put(e.getKey(), e.getValue());
          return ret;
     }