A JSP page contains a taglib directive whose uri attribute has the value dbtags.
Which XML element withinthe web application deployment descriptor defines the associated TLD？（）

单项选择题Assume the custom tag my：errorProne always throws a java.lang.RuntimeException with the message  Filenot found.  An error page has been configured for this JSP page. Which option prevents the exceptionthrown by my：errorProne from invoking the error page mechanism， and outputs the message  File notfound  in the response？（）

A.<c：try catch="ex"><my：errorProne /></c：try>${ex.message}
B.<c：catch var="ex"><my：errorProne /></c：catch>${ex.message}
C.<c：try>. <my：errorProne />. </c：try>. <c：catch var="ex" />. ${ex.message}
D.<c：try>. <my：errorProne />. <c：catch var="ex" />. ${ex.message}. </c：try>

多项选择题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’ %>

多项选择题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.

单项选择题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>

单项选择题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"）； %>