void function ( ) { changed = false ; }
reset this observable 's state to unchanged . this is called automatically by notifyobservers once all observers have been notified . concode_field_sep LinkedHashSet observers concode_elem_sep boolean changed concode_field_sep void deleteObservers concode_elem_sep void addObserver concode_elem_sep boolean hasChanged concode_elem_sep int countObservers concode_elem_sep void deleteObserver concode_elem_sep void setChanged concode_elem_sep void notifyObservers concode_elem_sep void notifyObservers