310-083 무료 덤프문제 온라인 액세스

You web application uses a lot of Java enumerated types in the domain model of the application. Built into each enum type is a method, getDisplay(), which returns a localized, user-oriented string. There are many uses for presenting enums within the web application, so your manager has asked you to create a custom tag that iterates over the set of enum values and processes the body of the tag once for each value; setting the value into a page-scoped attribute called, enumValue. Here is an example of how this tag is used:
1 0. <select name='season'>
1 1. <t:everyEnum type='com.example.Season'>
1 2. <option value='${enumValue}'>${enumValue.display}</option>
1 3. </t:everyEnum>
1 4. </select>
You have decided to use the Simple tag model to create this tag handler.
Which tag handler method will accomplish this goal?

• A.public void doTag() throw JspException {
  try {
  for ( Enum value : getEnumValues() ) {
  getJspContext().setAttribute("enumValue", value);
  getJspBody().invoke(null);
  }
  } (Exception e) { throw new JspException(e); }
  }
• B.public void doTag() throw JspException {
  try {
  for ( Enum value : getEnumValues() ) {
  pageContext.setAttribute("enumValue", value);
  getJspBody().invoke(getOut());
  }
  } (Exception e) { throw new JspException(e); }
  }
• C.public void doTag() throw JspException {
  try {
  for ( Enum value : getEnumValues() ) {
  getJspContext().setAttribute("enumValue", value);
  getJspBody().invoke(getJspContext().getWriter());
  }
  } (Exception e) { throw new JspException(e); }
  }
• D.public void doTag() throw JspException {
  try {
  for ( Enum value : getEnumValues() ) {
  pageContext.setAttribute("enumValue", value);
  getJspBody().invoke(getJspContext().getWriter());
  }
  } (Exception e) { throw new JspException(e); }
  }

After a merger with another small business, your company has inherited a legacy WAR file but the original source files were lost. After reading the documentation of that web application, you discover that the WAR file contains a useful tag library that you want to reuse in your own webapp packaged as a WAR file.
What do you need to do to reuse this tag library?

• A.Unpack the legacy WAR file, move the TLD file to the META-INF directory, move the class files to the top-level directory, repackage the whole thing as a JAR file, and place that
  JAR file in your webapp's library directory.
• B.Unpack the legacy WAR file, move the TLD file to the META-INF directory, repackage the whole thing as a JAR file, and place that JAR file in your webapp's library directory.
• C.Unpack the legacy WAR file, move the TLD file to the META-INF directory, move the class files to the top-level directory, repackage the WAR, and place that WAR file in your webapp's WEB-INF directory.
• D.Simply rename the legacy WAR file as a JAR file and place it in your webapp's library directory.

You are creating a new JSP page and you need to execute some code that acts when the page is first executed, but only once. Which three are possible mechanisms for performing this initialization code? (Choose three.)

• A.In the constructor of the JSP's Java code.
• B.In a JSP declaration, which includes a static initializer block.
• C.In the init method.
• D.In a JSP declaration, which includes an initializer block.
• E.In the jspInit method.

Which ensures that a JSP response is of type "text/plain"?

• A.<% response.setEncoding("text/plain"); %>
• B.<% response.setMimeType("text/plain"); %>
• C.<%@ page contentEncoding="text/plain" %>
• D.<%@ page pageEncoding="text/plain" %>
• E.<%@ page mimeType="text/plain" %>
• F.<%@ page contentType="text/plain" %>

Given:
6. <myTag:foo bar='42'>
7. <%="processing" %>
8. </myTag:foo>
and a custom tag handler for foo which extends TagSupport.
Which two are true about the tag handler referenced by foo? (Choose two.)

• A.The EVAL_BODY_BUFFERED constant is a valid return value for the doStartTag method.
• B.The SKIP_PAGE constant is a valid return value for the doStartTag method.
• C.The doAfterBody method is NOT called.
• D.The EVAL_PAGE constant is a valid return value for the doEndTag method.
• E.The doStartTag method is called once.