多项选择题

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The h：highlight tag renders its body， highlighting an arbitrary number of words， each of which is passed asan attribute （word1， word2， ...）. For example， a JSP page can invoke theh：highlight tag as follows： 11. 12. high medium low 13.
Given that HighlightTag extends SimpleTagSupport，which three steps are necessary to implement the taghandler for the highlight tag？（）

A.Add a doTag method
B.Add a doStartTag method
C.Add a getter and setter for the color attribute
D.Create and implement a TagExtraInfo class
E.Implement the DynamicAttributes interface
F.Add a getter and setter for the word1 and word2 attributes

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多项选择题Given an EL function declared with：11. <function> 12.<name>spin< name> 13.<function-class>com.example.Spinner< function-class> 14.<function-signature> 15.java.lang.String spinIt（） 16.< function-signature> 17.< function> Which two are true？（）

A.The function method must have the signature： public String spin（）.
B.The method must be mapped to the logical name "spin" in the web.xml file.
C.The function method must have the signature： public String spinIt（）.
D.The function method must have the signature public static String spin（）.
E.The function method must have the signature： public static String spinIt（）.
F.The function class must be named Spinner， and must be in the package com.example.

单项选择题Given a web application in which the cookie userName is expected to contain the name of the user. Which EL expression evaluates to that user name？（）

A.${userName}
B.${cookie.userName}
C.${cookie.user.name}
D.${cookies.userName[0]}

多项选择题Given： http： com.example myServlet.jsp？num=one&num=two&num=three. Which&ensp;two produce the output one， two and three ？（）

A.${param.num[0]，[1] and [2]}
B.${paramValues[0]，[1] and [2]}
C.${param.num[0]}， ${param.num[1]} and ${param.num[2]}
D.${paramValues.num[0]}， ${paramValues.num[1]} and ${paramValues.num[2]}
E.${paramValues["num"][0]}， ${paramValues["num"][1]} and ${paramValues["num"][2]}

多项选择题Given： 11.<% java.util.Map map = new java.util.HashMap（）； 12.request.setAttribute（ map ， map）； 13.map.put（ a ， true ）； 14.map.put（ b ， false ）； 15.map.put（ c ， 42 ）； %> Which three EL expressions are valid and evaluate to true？（）

A.${not map.c}
B.${map.d or map.a}
C.${map.a and map.d}
D.${map.false or map.true}
E.${map.a and map.b or map.a}

多项选择题Given： 11.<% 12.request.setAttribute（ vals ， new String[]{ 1 ， 2 ， 3 ， 4 }）； 13.request.setAttribute（ index ， 2 ）； 14.%> 15.<%-- insert code here --%> Which three EL expressions， inserted at line 15，are valid and evaluate to 3 ？（）

A.${vals.2}
B.${vals["2"]}
C.${vals.index}
D.${vals[index]}
E.${vals}[index]
F.${vals[vals[index-1]]}