You are writing a JSP that includes scriptlet code to declare a List variable and initializes that variable to anArrayList object.
Which two JSP code snippets can you use to import these list types？（）
A.<%! import java.util.*； %>
B.<%! import java.util.List；import java.util.ArrayList； %>
C.<%@ page import=’java.util.List’import=’java.util.ArrayList’ %>
D.<%@ import types=’java.util.List’types=’java.util.ArrayList’ %>
E.<%@ page import=’java.util.List，java.util.ArrayList’ %>
F.<%@ import types=’java.util.List，java.util.ArrayList’ %>
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You are creating a new JSP page and you need to execute some code that acts when the page is firstexecuted， but only once.
Which three are possible mechanisms for performing this initialization code？（）
A.In the init method.
B.In the jspInit method.
C.In the constructor of the JSP’s Java code.
D.In a JSP declaration， which includes an initializer block.
E.In a JSP declaration， which includes a static initializer block.
Given the element from the web application deployment descriptor：
<jsp-property-group>
<url-pattern>/main/page1.jsp</url-pattern>
<scripting-invalid>true</scripting-invalid>
</jsp-property-group>
and given that /main/page1.jsp contains：
<% int i = 12； %>
<b><%= i %></b>
What is the result？（）
A.<b></b>
B.<b>12</b>
C.The JSP fails to execute.
D.<% int i = 12 %><b><%= i %></b>
In a JSP-centric web application， you need to create a catalog browsing JSP page. The catalog is stored asa List object in the catalog attribute of the webapp’s ServletContext object.
Which scriptlet code snippetgives you access to the catalog object？（）
A.<% List catalog = config.getAttribute（"catalog"）； %>
B.<% List catalog = context.getAttribute（"catalog"）； %>
C.<% List catalog = application.getAttribute（"catalog"）； %>
D.<% List catalog = servletContext.getAttribute（"catalog"）； %>
For manageability purposes， you have been told to add a "count" instance variable to a critical JSP Document so that a JMX MBean can track how frequent this JSP is being invoked.
Which JSP code snippetmust you use to declare this instance variable in the JSP Document？（）
A.<jsp：declaration>int count = 0；<jsp：declaration>
B.<%! int count = 0； %>
C.<jsp：declaration.instance>int count = 0；. <jsp：declaration.instance>
D.<jsp：scriptlet.declaration>int count = 0；. <jsp：scriptlet.declaration>
For debugging purposes， you need to record how many times a given JSP is invoked before the user’ssession has been created. The JSP’s destroy method stores this information to a database.
Which JSPcode snippet keeps track of this count for the lifetime of the JSP page？（）
A.<%! int count = 0； %><% if （ request.getSession（false） == null ） count++； %>
B.<%@ int count = 0； %>. <% if （ request.getSession（false） == null ） count++； %>
C.<% int count = 0；. if （ request.getSession（false） == null ） count++； %>
D.<%@ int count = 0；. if （ request.getSession（false） == null ） count++； %>
E.<%! int count = 0；. if （ request.getSession（false） == null ） count++； %>
最新試題
Given a web application in which the request parameter productID contains a product identifier.Which twoEL expressions evaluate the value of the productID？（）
You are building a dating service web site. Part of the form to submit a client’s profile is a groupIIof radio buttons for the person’s hobbies：20.<input type=’radio’ name=’hobbyEnum’ value=’HIKING’>Hiking <br>21.<input type=’radio’ name=’hobbyEnum’ value=’SKIING’>Skiing <br>22.<input type=’radio’ name=’hobbyEnum’ value=’SCUBA’>SCUBA Diving23.<!-- and more options -->After the user submits this form， a confirmation screen is displayed with these hobbies listed. Assume thatan application-scoped variable， hobbies， holds a map between the Hobby enumerated type and the displayname.Which EL code snippet will display Nth element of the user’s selected hobbies？（）
Your company has a corporate policy that prohibits storing a customer’s credit card number in anycorporate database. However， users have complained that they do NOT want to re- enter their credit cardnumber for each transaction. Your management has decided to use client-side cookies to record the user’scredit card number for 120 days. Furthermore， they also want to protect this information during transit fromthe web browser to the web container； so the cookie must only be transmitted over HTTPS.Which codesnippet creates the "creditCard" cookie and adds it to the out going response to be stored on the user’s webbrowser？（）
In which three directories， relative to a web application’s root， may a tag library descriptor file reside whendeployed directly into a web application？（）
Which is a benefit of precompiling a JSP page？（）
A web application allows the HTML title banner to be set using a servlet context initialization parametercalled titleStr.Which two properly set the title in this scenario？（）
Which is true about the web container request processing model？（）
Click the ’Select and Place’ button.Place the events in the order they occur.
A web browser need NOT always perform a complete request for a particular page that it suspects mightNOT have changed. The HTTP specification provides a mechanism for the browser to retrieve only a partialresponse from the web server； this response includes information， such as the Last-Modified date but NOTthe body of the page.Which HTTP method will the browser use to retrieve such a partial response？（）
Click the ’Select and Place’ button.Place the events in the order they occur.