@Override public Iterator<K> iterator() {final Iterator<Entry<K, V>> iterator = filteredEntrySet.iterator();return new UnmodifiableIterator<K>();}

@ Override public Iterator < K > iterator ( ) { final Iterator < Entry < K , V > > iterator = filteredEntrySet . iterator ( ) ; return new UnmodifiableIterator < K > ( ) ; }
public override java.util.Iterator<K> iterator(){return new java.util.Hashtable<K, V>.KeyIterator(this._enclosing);}
