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SCWCD CX-310-081 Sun Certified Web Component Developer SCWCD 1.4 Certification SCWCD 1.4 Tests SCWCD 1.4 Mock Exams Free SCWCD Questions Practice Tests | PHR Practice Tests | SPHR Practice Tests | SCJP Practice Tests | SCWCD Practice Tests | SCBCD Practice Tests | SCDJWS Practice Tests | PMP Practice Test| GPHR Practice Tests

SCWCD Certification Practice Tests SCWCD Study Guide (CX-310-081)
 
 SCWCD Certification Practice Test  

Features Of CertGear's SCWCD 1.4 (CX-310-081) Certification Practice Test

  • Learn As You Go - Detailed explanations tell you not just the right answer, but why the right answer is right and the wrong answers are wrong. References for further study are also provided.

  • Customized Options - You decide the way you want to take the testing including:
    Timed, Live scoring, Randomization, Ask Incorrect, Show Answer, Select # of questions.

  • Ask Only The Questions You Got Wrong - This is a great feature. At the end of the exam, instead of being asked every question again, you can tell the test engine to only ask you questions that you got incorrect.

  • Randomization - The tests in our certification mode are dynamic, not fixed like some other practice tests are, so you'll get a new test every time. Each test is timed and the objectives are weighted the same as on the real exam.

  • History - The test engine keeps a history of all the exams and scores you have achieved on those tests. You can easily track your progress and help determine when you are ready to take the actual exam.

  • Categories - Many tests contain categories for you to selectively study topics. Additionally, you can see your grade in each category at the end of the exam.

  • Graphic Scoring - Graphical Breakdown Of Exam Results To Pinpoint Areas To Focus Your Study Effort..

  • Updates - Keep Up-To-Date With The Most Current And Most Accurate Exam Questions / Answers / Explanations With Complimentary Product Updates.

 

Free SCWCD Certification Practice Questions:

Let's assume you are writing a JSP page using EL expressions. You have an variable declared as java.util.Map customerMap. You need to retrieve the customer info that is stored in this map.

Which of the following methods is invoked by the JSP engine upon execution of the following EL expression: ${customerMap[CustomerA]}?

  • A) customerMap.get (pageContext.findAttribute ("CustomerA"));
  • B) customerMap.get("CustomerA")
  • C) customerMap.remove ("CustomerA");
  • D) customerMap.getProperty ("CustomerA");
  • E) customerMap.getCustomerA ();

    • [Ans: A]

    • Expressions with syntax '${identifier[subexpression]}' are considered EL expressions. If the identifier is a MAP, the following rules apply: The subexpression is regarded as one of the map's keys. The expression evaluates to identifier.get (subexpression). Specifically, ${customerMap["CustomerA"]} and ${customerMap[CustomerA]} are NOT functionally equivalent. Please note that the former specifies a STRING for the key, whereas the latter specifies an IDENTIFIER for the key.

      When an IDENTIFIER is used as the key, the PageContext.findAttribute method is invoked by the JSP engine, which searches all FOUR JSP scopes (page, request, session, and application scopes) for a scoped variable with a matching name.On the other hand, if a STRING is specified, the JSP engine invokes the get() method on the map itself.

      In this example, an IDENTIFIER is specified for the key, rather than a String. Hence, the JSP engine will invoke the PageContext.findAttribute () method, instead of directly invoking the map's get() method.

      References:
      http://java.sun.com/j2ee/1.4/docs/tutorial/doc/JSPIntro7.html



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