public LabelSet(int indices[],boolean sort){
  this.indices=indices;
  if (sort == true)   Arrays.sort(this.indices);
}

public LabelSet ( int indices [ ] , boolean sort ) { this . indices = indices ; if ( sort == true ) Arrays . sort ( this . indices ) ; }
a new labelset , indicating sort = true if indices they need to be sorted ( i . e . , are not sorted ) .
