question: returns all registered keys as an enumeration . concode_field_sep Object[] EMPTY_ARRAY concode_elem_sep long serialVersionUID concode_elem_sep Iterator EMPTY_ITERATOR concode_elem_sep HashMap table concode_field_sep Object next concode_elem_sep boolean add concode_elem_sep List createList concode_elem_sep Iterator getAll concode_elem_sep boolean containsKey concode_elem_sep void clear concode_elem_sep boolean hasNext concode_elem_sep int getValueCount concode_elem_sep void remove concode_elem_sep boolean remove concode_elem_sep boolean put concode_elem_sep boolean containsValue concode_elem_sep boolean containsValue concode_elem_sep void removeAll concode_elem_sep boolean contains concode_elem_sep Object getFirst concode_elem_sep Object get concode_elem_sep Object clone concode_elem_sep Object[] toArray concode_elem_sep Object[] toArray concode_elem_sep Set keySet
target: Iterator function ( ) { return this . table . keySet ( ) . iterator ( ) ; }