Youarebuildingawebapplicationthatwillbe&en

sictaghandlercode：5.publicintdoStartTag（）throwsJspException{6.//insertcodehere7.//returnint8.}Assumetherearenoother"foo"attributesinthewebapplication.WhichinvocationonthepageContextobject，insertedatline6，assigns"bar"tothevariablex？（）

A.Stringx=（String）pageContext.getAttribute（"foo"）

B.Stringx=（String）pageContext.getRequestScope（"foo"）

C.ItisNOTpossibletoaccessthepageContextobjectfromwithindoStartTag

D.Stringx=（String）pageContext.getRequest（）.getAttribute（"foo"）

E.Stringx=（String）pageContext.getAttribute（"foo"，PageContext.ANY_SCOPE）

;sl：shoppingList>12.<sl：itemname="Bread"/>13.<sl：itemname="Milk"/>14.<sl：itemname="Eggs"/>15.</sl：shoppingList>Thetaghandlerforsl：shoppingListisShoppingListTagandthetaghandlerforsl：itemisItemSimpleTag.ShoppingListTagextendsBodyTagSupportandItemSimpleTagextendsSimpleTagSupport.Whichistrue？（）

A.ItemSimpleTagcanfindtheenclosinginstanceofShoppingListTagbycallinggetParent（）andcastingtheresulttoShoppingListTag.

B.ShoppingListTagcanfindthechildinstancesofItemSimpleTagbycallingsuper.getChildren（）andcastingeachtoanItemSimpleTag.

C.ItisimpossibleforItemSimpleTagandShoppingListTagtofindeachotherinataghierarchybecauseoneisaSimpletagandtheotherisaClassictag.

D.ShoppingListTagcanfindthechildinstancesofItemSimpleTagbycallinggetChildren（）onthePageContextandcastingeachtoanItemSimpleTag.

E.ItemSimpleTagcanfindtheenclosinginstanceofShoppingListTagbycallingfindAncestorWithClass（）onthePageContextandcastingtheresulttoShoppingListTag.

tainer.ServletAneedstosharedatawithservletBandthatdatamustnotbevisibletootherservletsinA’swebapplication.InwhichobjectcanthedatathatAshareswithBbestored？（）

A.HttpSession

B.ServletConfig

C.ServletContext

D.HttpServletRequest

E.HttpServletResponse

tor.AnAdapterlisanon-abstract，non-finalclasswithoutazeroargumentconstructor，butwithaconstructorthattakesoneintargument.Whichtwoconstructananonymousinnerclass（）？

A.AnAdapter1aa=newAnAdapter1（）{}

B.AnAdapter0aa=newAnAdapter0（）{}

C.AnAdapter0aa=newAnAdapter0（5）{}

D.AnAdapter1aa=newAnAdapter1（5）{}

E.AnInterfaceai=newAnlnterface（5））{}

A.IncludealistenerdirectiveinaJSPpage

B.configurealistenerintheTLDfileusingthe

A.Yourfilterclassmustimplementaninitmethodandadestroymethod.

B.Yourfilterclassmustalsoimplementjavax.servlet.FilterChain.

C.Whenyourfilterchainstothenextfilter，itshouldpassthesameargumentsitreceivedinitsdoFiltermethod.

D.Themethodthatyourfilterinvokesontheobjectitreceivedthatimplementsjavax.servlet.FilterChaincaninvokeeitheranotherfilteroraservlet.

E.YourfilterclassmustimplementadoFiltermethodthattakes，amongotherthings，anHTTPServletRequestobjectandanHTTPServletResponseobject.

A.16>4

B.16/2

C.16*4

D.16>>2

E.16/22

F.16>>>2

A.AnexceptionisthrownatruntimebySourceServlet.

B.AnexceptionisthrownatruntimebyDestinationServlet.

C.Only"hellofromdest"appearsintheresponseoutputstream.

D.Both"hellofromsource"and"hellofromdest"appearintheresponseoutputstream.

ossmultiplerequestsfromthatuser，fromthesamebrowserinstance.Whichtwoprovidethiscapability fromwithinataghandler？（）

A.pageContext.setAttribute（"name"，theValue）

B.pageContext.setAttribute（"name"，getSession（））

C.pageContext.getRequest（）.setAttribute（"name"，theValue）

D.pageContext.getSession（）.setAttribute（"name"，theValue）

E.pageContext.setAttribute（"name"，theValue，PageContext.PAGE_SCOPE）

F.pageContext.setAttribute（"name"，theValue，PageContext.SESSION_SCOPE）

ce（HttpServletRequestrequest，13.HttpServletResponseresponse）14.throwsServletException，IOException{15.HttpSessionsession=request.getSession（）；16.session.setAttribute（"myAttribute"，"myAttributeValue"）；17.session.invalidate（）；18.response.getWriter（）.println（"value="+19.session.getAttribute（"myAttribute"））；20.}21.}WhatistheresultwhenarequestissenttoMyServlet？（）

A.AnIllegalStateExceptionisthrownatruntime.

B.AnInvalidSessionExceptionisthrownatruntime.

C.Thestring"value=null"appearsintheresponsestream.

D.Thestring"value=myAttributeValue"appearsintheresponsestream.