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.
相关考题
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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"）； %> -
单项选择题
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>
