question: delete and return the item most recently added to the stack . throw an exception if no such item exists because the stack is empty . concode_field_sep Node next concode_elem_sep Item item concode_elem_sep int N concode_elem_sep Node first concode_elem_sep Node current concode_field_sep Item next concode_elem_sep Iterator<Item> iterator concode_elem_sep int size concode_elem_sep boolean isEmpty concode_elem_sep String toString concode_elem_sep boolean hasNext concode_elem_sep boolean check concode_elem_sep void push concode_elem_sep void remove concode_elem_sep Item peek
target: Item function ( ) { if ( isEmpty ( ) ) throw new RuntimeException ( "srini_string" ) ; Item loc0 = first . loc0 ; first = first . next ; N -- ; assert check ( ) ; return loc0 ; }