多項選擇題

Given that a scoped attribute cart exists only in a user’s session， which two，taken independently，ensurethe scoped attribute cart no longer exists？（）

A.${cart = null}
B.<c：remove var="cart" />
C.<c：remove var="${cart}" />
D.<c：remove var="cart" scope="session" />
E.<c：remove scope="session">cart</c：remove>

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多項選擇題

Given in a single JSP page：
<%@ taglib prefix=’java’ uri=’myTags’ %>
<%@ taglib prefix=’JAVA’ uri=’moreTags’ %>
Which two are true？（）

A.The prefix ’java’ is reserved.
B.The URI ’myTags’ must be properly mapped to a TLD file by the web container.
C.A translation error occurs because the prefix is considered identical by the web container.
D.For the tag usage ， the tag1 must be unique in the union of tag names in ’myTags’ and’moreTags’.

單項選擇題

Which interface must a session attribute implement if it needs to be notified when a web container persistsa session？（）

A.javax.servlet.http.HttpSessionListener
B.javax.servlet.http.HttpSessionBindingListener
C.javax.servlet.http.HttpSessionAttributeListener
D.javax.servlet.http.HttpSessionActivationListener

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Given that a scoped attribute cart exists only in a user’s session， which two，taken independently，ensurethe scoped attribute cart no longer exists？（）

你可能感興趣的試題

Given in a single JSP page： <%@ taglib prefix=’java’ uri=’myTags’ %> <%@ taglib prefix=’JAVA’ uri=’moreTags’ %> Which two are true？（）

Which interface must a session attribute implement if it needs to be notified when a web container persistsa session？（）

Given that a scoped attribute cart exists only in a user’s session， which two，taken independently，ensurethe scoped attribute cart no longer exists？（）

Given in a single JSP page：
<%@ taglib prefix=’java’ uri=’myTags’ %>
<%@ taglib prefix=’JAVA’ uri=’moreTags’ %>
Which two are true？（）

Which interface must a session attribute implement if it needs to be notified when a web container persistsa session？（）