Java parameters, dictionary in ascending order

Development of this time, encountered a number of different interfaces, some of the interface is more rigorous, need to encrypt the parameter dictionary in ascending order, so write the following method to sort, using the way in the map, the dictionary of his key in ascending order, return to the list of orders.

 Public Static List GetCode (map map) {    new  ArrayList ();     = Map.entryset (). iterator ();  // get a map of iterator       while (Iter.hasnext ()) {        = (Entry) Iter.next ();        List.add (Entry.getkey ());      }    Collections.sort (list);     return list;}

The value can then be taken out by traversing the subscript of the list.

Java parameters, dictionary in ascending order