private Set<Integer> findValues(String string){
  Set<Integer> results=new TreeSet<Integer>();
  for (  String str : string.split(",")) {
    if (!str.equals("")) {
      results.add(findValue(str));
    }
  }
  return results;
}

private Set < Integer > findValues ( String string ) { Set < Integer > results = new TreeSet < Integer > ( ) ; for ( String str : string . split ( "," ) ) { if ( ! str . equals ( "" ) ) { results . add ( findValue ( str ) ) ; } } return results ; }
search for a string in the enumeration .
