Oracle Oracle Certifications 1Z0-809 Questions & Answers

• Question 81:

  Given the content: and given the code fragment:

  

  

  Which two code fragments, when inserted at line 1 independently, enable the code to print "Wie geht's?"

  A. currentLocale = new Locale ("de", "DE");

  B. currentLocale = new Locale.Builder ().setLanguage ("de").setRegion ("DE").build();

  C. currentLocale = Locale.GERMAN;

  D. currentlocale = new Locale(); currentLocale.setLanguage ("de"); currentLocale.setRegion ("DE");

  E. currentLocale = Locale.getInstance(Locale.GERMAN,Locale.GERMANY);

  Correct Answer: BD

• Question 82:

  Given the code fragment:

  

  What is the result?

  A. Word: why what when

  B. Word: why Word: why what Word: why what when

  C. Word: why Word: what Word: when

  D. Compilation fails at line n1.

  Correct Answer: A

• Question 83:

  Given:

  

  Which option fails?

  A. Foo mark = new Foo ("Steve", 100);

  B. Foo pair = Foo.twice ("Hello World!");

  C. Foo percentage = new Foo("Steve", 100);

  D. Foo grade = new Foo <> ("John", "A");

  Correct Answer: A

• Question 84:

  Given the code fragment:

  

  Which modification enables the code to print Price 5 New Price 4?

  A. Replace line n2 with .map (n -> System.out.println (“New Price” + n –1)) and remove line n3

  B. Replace line n2 with .mapToInt (n -> n – 1);

  C. Replace line n1 with .forEach (e -> System.out.print (“Price” + e))

  D. Replace line n3 with .forEach (n -> System.out.println (“New Price” + n));

  Correct Answer: D

• Question 85:

  Which two are elements of a singleton class? (Choose two.)

  A. a transient reference to point to the single instance

  B. a public method to instantiate the single instance

  C. a public static method to return a copy of the singleton reference

  D. a private constructor to the class

  E. a public reference to point to the single instance

  Correct Answer: BD

• Question 86:

  Given the code fragment:

  

  What is the result?

  A. David David [Susan, Allen]

  B. Susan Susan [Susan, Allen]

  C. Susan Allen [David]

  D. David Allen [Susan]

  E. Susan Allen [Susan, David]

  Correct Answer: C

  

• Question 87:

  Given: and the code fragment:

  

  

  Which two code fragments, when inserted at line n1 independently, enable the code to print TruckCarBike?

  A. .sorted ((v1, v2) -> v1.getVId() < v2.getVId())

  B. .sorted (Comparable.comparing (Vehicle: :getVName)).reversed ()

  C. .map (v -> v.getVid()) .sorted ()

  D. .sorted((v1, v2) -> Integer.compare(v1.getVId(), v2.getVid()))

  E. .sorted(Comparator.comparing ((Vehicle v) -> v.getVId()))

  Correct Answer: DE

• Question 88:

  Given the code fragment:

  

  What is the result?

  A. A compilation error occurs at line n2.

  B. 3

  C. 2

  D. A compilation error occurs at line n1.

  Correct Answer: A

• Question 89:

  Given the code fragment:

  

  What is the result?

  A. A compilation error occurs at line n1.

  B. Logged out at: 2015-01-12T21:58:19.880Z

  C. Can't logout

  D. Logged out at: 2015-01-12T21:58:00Z

  Correct Answer: D

• Question 90:

  Given the code fragment:

  

  What is the result?

  A. A compilation error occurs at line n1.

  B. Checking...

  C. Checking... Checking...

  D. A compilation error occurs at line n2.

  Correct Answer: A