question: public static String deleteFromCart ( HttpServletRequest request , HttpServletResponse response ) { ShoppingCart cart = getCartObject ( request ) ; LocalDispatcher dispatcher = ( LocalDispatcher ) request . getAttribute ( "dispatcher" ) ; ShoppingCartHelper cartHelper = new ShoppingCartHelper ( null , dispatcher , cart ) ; String controlDirective ; Map < String , Object > result ; Map < String , Object > paramMap = UtilHttp . getParameterMap ( request ) ; result = cartHelper . deleteFromCart ( paramMap ) ; controlDirective = processResult ( result , request ) ; if ( controlDirective . equals ( ERROR ) ) { return "error" ; } else { return "success" ; } }
target:  Delete an item from the shopping cart. 