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[General] 1z0-809 Valid Exam Sims | 1z0-809 Reliable Dumps Pdf

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【General】 1z0-809 Valid Exam Sims | 1z0-809 Reliable Dumps Pdf

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Oracle Java SE 8 Programmer II Sample Questions (Q153-Q158):NEW QUESTION # 153
Given the code fragment:

What is the result?
  • A. A compilation error occurs at line n1.
  • B. Can't logout
  • C. Logged out at: 2015-01-12T21:58:00Z
  • D. Logged out at: 2015-01-12T21:58:19.880Z
Answer: C

NEW QUESTION # 154
You want to create a singleton class by using the Singleton design pattern.
Which two statements enforce the singleton nature of the design?
  • A. Make the class static.
  • B. Override equals() and hashCode() methods of the java.lang.Object class.
  • C. Implement the Serializable interface.
  • D. Use a static reference to point to the single instance.
  • E. Make the constructor private.
Answer: D,E

NEW QUESTION # 155
Given the code fragments:
4. void doStuff() throws ArithmeticException, NumberFormatException, Exception {
5. if (Math.random() >-1 throw new Exception ("Try again");
6. }
and
24. try {
25. doStuff ( ):
26. } catch (ArithmeticException | NumberFormatException | Exception e) {
27. System.out.println (e.getMessage()); }
28. catch (Exception e) {
29. System.out.println (e.getMessage()); }
30. }
Which modification enables the code to print Try again?
  • A. Replace line 26 with:} catch (ArithmeticException | NumberFormatException e) {
  • B. Replace line 27 with:throw e;
  • C. Replace line 26 with:} catch (Exception | ArithmeticException | NumberFormatException e) {
  • D. Comment the lines 28, 29 and 30.
Answer: A

NEW QUESTION # 156
Given:
class CheckClass {
public static int checkValue (String s1, String s2) {
return s1 length() - s2.length();
}
}
and the code fragment:
String[] strArray = new String [] {"Tiger", "Rat", "Cat", "Lion"}
//line n1
for (String s : strArray) {
System.out.print (s + " ");
}
Which code fragment should be inserted at line n1 to enable the code to print Rat Cat Lion Tiger?
  • A. Arrays.sort(strArray, CheckClass : : checkValue);
  • B. Arrays.sort(strArray, (CheckClass : : new).checkValue);
  • C. Arrays.sort(strArray, (CheckClass : : new) : : checkValue);
  • D. Arrays.sort(strArray, CheckClass : : new : : checkValue);
Answer: A

NEW QUESTION # 157
The protected modifier on a Field declaration within a public class means that the field
______________.
  • A. Can be read but not written from outside the class
  • B. Can be read and written from this class and its subclasses defined in any package
  • C. Can be read and written from this class and its subclasses only within the same package
  • D. Cannot be modified
Answer: B
Explanation:
http://beginnersbook.com/2013/05/java-access-modifiers/

NEW QUESTION # 158
......
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