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Certification Practice Tests For PHR, SPHR, GPHR, SCWCD, SCBCD, SCDJWS, SCJP, PMP
CertGear Products - Certification Practice Tests For PHR, SPHR, GPHR, SCWCD, SCBCD, SCDJWS, SCJP, PMPCertGear Products - Certification Practice Tests For PHR, SPHR, GPHR, SCWCD, SCBCD, SCDJWS, SCJP, PMPAbout CertGearCertGear Affiliates ProgramCertGear Technical SupportCertGear Product Downloads - Certification Practice Tests For PHR, SPHR, GPHR, SCWCD, SCBCD, SCDJWS, SCJP, PMP
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 SCJP Certification Practice Test  

Features Of CertGear's SCJP (CX-310-035) 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 SCJP Certification Practice Questions:

Based on the following code, how many objects are eligible for garbage collection at line #11:

1:import java.util.*;
2:public class test
3:{
4:      public static void main (String args[])
5:      {
6:      StringBuffer a = new StringBuffer ("Hello");
7:      StringBuffer b = new StringBuffer ("World");
8:      StringBuffer c = new StringBuffer ("Hi World");
9:      a = b;
10:     c = doTest ();
11:
12:     }
13:
14:     private static StringBuffer doTest () {
15:     Vector v = new Vector ();
16:     StringBuffer x = new StringBuffer ("DoTest");
17:     v.add (x);
18:     return x;
19:     }
20:}
A) 0
B) 1
C) 2
D) 3
E) 4
  • [Ans: D]

  • An object can become eligible for garbage collection when there are no more reachable references to the object.

    Based on the code, the StringBuffer a Object created at line #6 becomes un-referenced at line #9, when StringBuffer a is reassigned to refer to the object referred to by StringBuffer b. This removes the only reference to the StringBuffer ("Hello") object, making this object eligible for garbage collection.

    In addition, objects that are created in a method also need to be examined. Specifically, when a method is invoked, any local variables created exist only during the execution of the method. Once the method has returned, the objects created in the method are eligible for garbage collection. However, if an object is returned from the method, its method might be assigned to another variable, and hence, may NOT be eligible for garbage collection.

    Based on the code, Vector v created at line #15 is eligible for garbage collection at the end of the doTest () method. However, StringBuffer x created at line #16 is NOT eligible for garbage collection at the end of the doTest() method, since the object is returned from the method and assigned to StringBuffer d at line #10.

    However, by reassigning StringBuffer c at line #10, the StringBuffer object created at line #8 ("Hi World") loses its only single reference, and hence becomes eligible for garbage collection.

    So at line #11, three objects [Vector v, StringBuffer a ("Hello"), StringBuffer ("Hi World")] are eligible for garbage collection.



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