retrieves and removes the head of this queue . this method differs from poll only in that it throws an exception if this queue is empty . concode_field_sep Double[] array concode_field_sep boolean add concode_elem_sep String toString concode_elem_sep Double poll concode_elem_sep Double peek concode_elem_sep Double element
Double function ( ) { if ( array . length > 0 ) { Double loc0 = array [ 0 ] ; array = Arrays . copyOfRange ( array , 1 , array . length ) ; return loc0 ; } throw new NoSuchElementException ( ) ; }