question: creates an empty priorityqueue with the ordering given by itselements ' natural ordering . concode_field_sep PlaceHolder placeHolder concode_field_sep SynchronousQueue<E> newSynchronousQueue concode_elem_sep ConcurrentLinkedQueue<E> newConcurrentLinkedQueue concode_elem_sep ConcurrentLinkedQueue<E> newConcurrentLinkedQueue concode_elem_sep PriorityBlockingQueue<E> newPriorityBlockingQueue concode_elem_sep PriorityBlockingQueue<E> newPriorityBlockingQueue concode_elem_sep Deque<E> synchronizedDeque concode_elem_sep LinkedBlockingDeque<E> newLinkedBlockingDeque concode_elem_sep LinkedBlockingDeque<E> newLinkedBlockingDeque concode_elem_sep LinkedBlockingDeque<E> newLinkedBlockingDeque concode_elem_sep LinkedBlockingQueue<E> newLinkedBlockingQueue concode_elem_sep LinkedBlockingQueue<E> newLinkedBlockingQueue concode_elem_sep LinkedBlockingQueue<E> newLinkedBlockingQueue concode_elem_sep ArrayDeque<E> newArrayDeque concode_elem_sep ArrayDeque<E> newArrayDeque concode_elem_sep ArrayBlockingQueue<E> newArrayBlockingQueue concode_elem_sep int drain concode_elem_sep int drainUninterruptibly concode_elem_sep Queue<E> synchronizedQueue
target: PriorityQueue < E > function ( ) { return new PriorityQueue < E > ( ) ; }