Click the Exhibit button.
As a maintenance feature， you have created this servlet to allow you to upload and remove files on yourweb server. Unfortunately， while testing this servlet， you try to upload a file using an HTTP request and onthis servlet， the web container returns a 404 status.
What is wrong with this servlet？（）
A.HTTP does NOT support file upload operations.
B.The servlet constructor must NOT have any parameters.
C.The servlet needs a service method to dispatch the requests to the helper methods.
D.The doPut and doDelete methods do NOT map to the proper HTTP methods.
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Given：
10.public void service（ServletRequest request，
11.ServletResponse response） {
12.ServletInputStream sis =
13.// insert code here
14.}
Which retrieves the binary input stream on line 13？（）
A.request.getWriter（）；
B.request.getReader（）；
C.request.getInputStream（）；
D.request.getResourceAsStream（）；
You need to retrieve the username cookie from an HTTP request. If this cookie does NOT exist， then the cvariable will be null.
Which code snippet must be used to retrieve this cookie object？（）
A.
B.
C.
D.
You are creating a servlet that generates stock market graphs. You want to provide the web browser withprecise information about the amount of data being sent in the response stream.
Which twoHttpServletResponse methods will you use to provide this information？（）
A.response.setLength（numberOfBytes）；
B.response.setContentLength（numberOfBytes）；
C.response.setHeader（"Length"， numberOfBytes）；
D.response.setIntHeader（"Length"， numberOfBytes）；
E.response.setHeader（"Content-Length"， numberOfBytes）；
F.response.setIntHeader（"Content-Length"， numberOfBytes）；
Your web page includes a Java SE v1.5 applet with the following declaration：
11.<object classid=’clsid：CAFEEFAC-0015-0000-0000-ABCDEFFEDCBA’
12.width=’200’ height=’200’>
13.<param name=’code’ value=’Applet.class’ />
14.</object>
Which HTTP method is used to retrieve the applet code？（）
A.GET
B.PUT
C.POST
D.RETRIEVE
A.request.addCookie（"username"， "joe"）
B.request.setCookie（"username"， "joe"）
C.response.addCookie（"username"， "joe"）
D.request.addHeader（new Cookie（"username"， "joe"））
E.request.addCookie（new Cookie（"username"， "joe"））
F.response.addCookie（new Cookie（"username"， "joe"））
最新試題
Given a Filter class definition with this method：21.public void doFilter（ServletRequest request，22.ServletResponse response，23.FilterChain chain）24.throws ServletException， IOException {25.// insert code here26.}Which should you insert at line 25 to properly invoke the next filter in the chain， or the target servlet if thereare no more filters？（）
Click the ’Select and Place’ button.Place the events in the order they occur.
Which ensures that a JSP response is of type "text/plain"？（）
You need to create a JSP that generates some JavaScript code to populate an array of strings used on the client-side.Which JSP code snippet will create this array？（）
All of your JSPs need to have a link that permits users to email the web master. This web application islicensed to many small businesses， each of which have a different email address for the web master. Youhave decided to use a context parameter that you specify in the deployment descriptor， like this：42.<context-param>43.<param-name>webmasterEmail</param-name>44.<param-value>master@example.com</param-value>45.</context-param>Which JSP code snippet creates this email link？（）
Click the 'Select and Place' button.Place the events in the order they occur.
You are building a web application with a scheduling component. On the JSP， you need to show the currentdate， the date of the previous week， and the date of the next week. To help you present this information，you have created the following EL functions in the ’d’ namespace： name： curDate； signature： java.util.DatecurrentDate（） name： addWeek； signature： java.util.Date addWeek（java.util.Date， int） name： dateString；signature：java.util.String getDateString（java.util.Date）Which EL code snippet will generate the string for the previousweek？
The JSP developer wants a comment to be visible in the final output to the browser.Which comment styleneeds to be used in a JSP page？（）
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？（）
In which three directories， relative to a web application’s root， may a tag library descriptor file reside whendeployed directly into a web application？（）