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Java Standard Edition 5 Programmer Certified Professional Exam

Question No: 11 – (Topic 1)

Click the Exhibit button.

What is the result?

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  1. The code will deadlock.

  2. The code may run with output quot;2 0 6 4quot;.

  3. The code may run with no output.

  4. The code may run with output quot;0 6quot;.

  5. An exception is thrown at runtime.

  6. The code may run with output quot;0 2 4 6quot;.

    Answer: F

    Question No: 12 – (Topic 1)

    Given:

    1. public class Blip {

    2. protected int blipvert(int x) { return 0; } 3. }

  1. class Vert extends Blip {

  2. // insert code here 6. }

    Which five methods, inserted independently at line 5, will compile? (Choose five.)

    1. protected int blipvert(long x) { return 0; }

    2. protected long blipvert(int x) { return 0; }

    3. private int blipvert(long x) { return 0; }

    4. private int blipvert(int x) { return 0; }

    5. public int blipvert(int x) { return 0; }

    6. protected long blipvert(long x) { return 0; }

    7. protected long blipvert(int x, int y) { return 0; }

Answer: A,C,E,F,G

Question No: 13 DRAG DROP – (Topic 1)

Click the Task button.

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Answer:

Ensurepass 2017 PDF and VCE

Question No: 14 – (Topic 1)

Given:

12. System.out.format(quot;Pi is approximately %d.quot;, Math.PI); What is the result?

  1. An exception is thrown at runtime.

  2. Compilation fails.

  3. Pi is approximately 3.

  4. Pi is approximately 3.141593.

Answer: A

Question No: 15 – (Topic 1)

Given the command line java Pass2 and:

  1. public class Pass2 {

  2. public void main(String [] args) {

  3. int x = 6;

  4. Pass2 p = new Pass2();

  5. p.doStuff(x);

  6. System.out.print(quot; main x = quot; x);

21. } 22.

  1. void doStuff(int x) {

  2. System.out.print(quot; doStuff x = quot; x );

25. }

26. }

What is the result?

  1. doStuff x = 6 main x = 6

  2. Compilation fails.

  3. doStuff x = 6 main x = 7

  4. An exception is thrown at runtime.

  5. doStuff x = 7 main x = 6

  6. doStuff x = 7 main x = 7

Answer: D

Question No: 16 – (Topic 1)

Given:

  1. public static void search(Listlt;Stringgt; list) {

  2. list.clear();

  3. list.add(quot;bquot;);

  4. list.add(quot;aquot;);

  5. list.add(quot;cquot;);

  6. System.out.println(Collections.binarySearch(list, quot;aquot;));

19. }

What is the result of calling search with a valid List implementation?

  1. 0

  2. The result is undefined.

  3. a

  4. 2

  5. 1

  6. c

  7. b

Answer: B

Question No: 17 – (Topic 1)

Click the Exhibit button.

Given: ClassA a = new ClassA(); a.methodA();

What is the result?

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  1. The code runs with no output.

  2. Compilation fails.

  3. An exception is thrown at runtime.

  4. ClassC is displayed.

Answer: C

Question No: 18 – (Topic 1)

Given:

  1. public static void test(String str) {

  2. int check = 4;

  3. if (check = str.length()) {

  4. System.out.print(str.charAt(check -= 1) quot;, quot;);

  5. } else {

  6. System.out.print(str.charAt(0) quot;, quot;);

17. }

18. }

and the invocation:

  1. test(quot;fourquot;);

  2. test(quot;teequot;);

  3. test(quot;toquot;); What is the result?

  1. An exception is thrown at runtime.

  2. r, e, o,

  3. Compilation fails.

  4. r, t, t,

Answer: C

Question No: 19 – (Topic 1)

A JavaBeans component has the following field:

11. private boolean enabled;

Which two pairs of method declarations follow the JavaBeans standard for accessing this

field? (Choose two.)

  1. public boolean setEnabled( boolean enabled ) public boolean getEnabled()

  2. public void setEnabled( boolean enabled ) public void isEnabled()

  3. public void setEnabled( boolean enabled ) public boolean getEnabled()

  4. public void setEnabled( boolean enabled ) public boolean isEnabled()

Answer: C,D

Question No: 20 – (Topic 1)

Given:

  1. public void genNumbers() {

  2. ArrayList numbers = new ArrayList(); 13. for (int i=0; ilt;10; i ) {

  1. int value = i * ((int) Math.random());

  2. Integer intObj = new Integer(value);

  3. numbers.add(intObj);

17. }

18. System.out.println(numbers);

19. }

Which line of code marks the earliest point that an object referenced by intObj becomes a candidate for garbage collection?

  1. Line 19

  2. The object is NOT a candidate for garbage collection.

  3. Line 17

  4. Line 16

  5. Line 18

Answer: A

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