单项选择题
	A. session = response.getSession();
	B. session = request.getSession();
	C. session = request.getSession(true);
	D. session = request.getSession(false);
	E. session = request.getSession(“jsessionid”);
多项选择题 Giventhatascopedattributecartexistsonlyinauser’ssession,whichtwo,takenindependently,ensurethescopedattributecartnolongerexists?()
单项选择题 Which option prevents the exception thrown by my:errorProne from invoking the error page mechanism and outputs the message "File not found" in the response?()
单项选择题 Whichinterfacemustaclassimplementsothatinstancesoftheclassarenotifiedafteranyobjectisaddedtoasession?()