not supported -- next already removes the head of the queue . concode_field_sep double[] priorities concode_elem_sep int size concode_elem_sep long serialVersionUID concode_elem_sep List<E> elements concode_elem_sep int capacity concode_field_sep E next concode_elem_sep boolean add concode_elem_sep int parent concode_elem_sep void grow concode_elem_sep void swap concode_elem_sep void heapifyDown concode_elem_sep boolean isEmpty concode_elem_sep boolean hasNext concode_elem_sep void main concode_elem_sep E peek concode_elem_sep int leftChild concode_elem_sep int size concode_elem_sep void removeFirst concode_elem_sep double getPriority concode_elem_sep PriorityQueue<E> clone concode_elem_sep int rightChild concode_elem_sep String toString concode_elem_sep String toString concode_elem_sep void heapifyUp
void function ( ) { throw new UnsupportedOperationException ( ) ; }