Oracle 1Z0-819 Online Practice Questions and Exam Preparation

Oracle 1Z0-819 Online Questions & Answers

• Question 191:

  Given:

  

  Which statement on line 1 enables the Test class to compile?

  A. if(p.test(number)) { B. if(p.apply(number)) {
  C. if(p.get(number)) {
  D. if(p.accept(number)) {
  A. if(p.test(number)) { B. if(p.apply(number)) {

• Question 192:

  Given:

  

  What is the result?

  A. Move GameObject Move GameObject
  B. Move Character Move GameObject Move GameObject
  C. Move GameObject
  D. Move GameObject Move Character Move GameObject
  A. Move GameObject Move GameObject

• Question 193:

  Given the code fragment:

  Path currentFile = Paths.get("/scratch/exam/temp.txt");

  Path outputFile = Paths get("/scratch/exam/new.txt");

  Path directory = Paths.get("/scratch/");

  Files.copy(currentFile, outputFile);

  Files.copy(outputFile, directory);

  Files.delete (outputFile);

  The /scratch/exam/temp.txt file exists. The /scratch/exam/new.txt and /scratch/new.txt files do not exist.

  What is the result?

  A. /scratch/exam/new.txt and /scratch/new.txt are deleted.
  B. The program throws a FileaAlreadyExistsException.
  C. The program throws a NoSuchFileException.
  D. A copy of /scratch/exam/new.txt exists in the /scratch directory and /scratch/exam/new.txt is deleted.
  B. The program throws a FileaAlreadyExistsException.

• Question 194:

  Which statement about a functional interface is true?

  A. It must be defined with the public access modifier.
  B. It must be annotated with @FunctionalInterface.
  C. It is declared with a single abstract method.
  D. It is declared with a single default method.
  E. It cannot have any private methods and static methods.
  C. It is declared with a single abstract method.

• Question 195:

  Given:

  

  What is the result?

  A. [A, B, C] followed by an exception thrown on line 11.
  B. [A, B, C] [A, B]
  C. [A, B, C] [A, B, C]
  D. On line 9, an exception is thrown at run time.
  C. [A, B, C] [A, B, C]

• Question 196:

  Given:

  

  Taking into account that the order of the elements is unpredictable, what is the output?

  A. {am=2, first=1, mismatch=1, second=2}
  B. {mismatch=2, am=2, first=1, second=1}
  C. {l=mismatch, 2=am}
  D. {mismatch=1, am=2, first=1, second=1}
  D. {mismatch=1, am=2, first=1, second=1}

• Question 197:

  Given:

  

  Which three classes successfully override printOne()? (Choose three.)

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  E. Option E
  F. Option F
  A. Option A
  C. Option C
  D. Option D

• Question 198:

  Given:

  

  What is the result?

  A. 2, 3 4, 5 4, 3
  B. 2, 3 4, 3 4, 5
  C. 2, 5 4, 5 4, 5
  D. 2, 3 4, 5 4, 5
  C. 2, 5 4, 5 4, 5

• Question 199:

  Given:

  

  It is required that if p instanceof Pair then p.isValid() returns true.

  Which is the smallest set of visibility changes to insure this requirement is met?

  A. setLeft and setRight must be protected.
  B. left and right must be private.
  C. isValid must be public.
  D. left, right, setLeft, and setRight must be private.
  D. left, right, setLeft, and setRight must be private.

• Question 200:

  Given:

  

  What is the result?

  A. 3 5 3 3
  B. 3 3 3 3
  C. 3 5 3 5
  D. 5 5 3 3
  A. 3 5 3 3