Oracle Oracle Certifications 1Z0-815 Questions & Answers

• Question 81:

  Given:

  

  executed using this command: java Myclass My Car is red What is the output of this class?

  A. Car--red--My

  B. My--Car--is

  C. My--is--java

  D. java--Myclass--My

  E. Myclass--Car--red

  Correct Answer: B

• Question 82:

  Given:

  

  Which two allow a.Main to allocate a new Person? (Choose two.)

  A. In Line 1, change the access modifier to private private Person() {

  B. In Line 1, change the access modifier to public public Person() {

  C. In Line 2, add extends Person to the Main class public class Main extends Person { and change Line 3 to create a new Main object Person person = new Main();

  D. In Line 2, change the access modifier to protected protected class Main {

  E. In Line 1, remove the access modifier Person() {

  Correct Answer: CE

• Question 83:

  Given:

  

  Which loop incurs a compile time error?

  A. the loop starting line 11

  B. the loop starting line 7

  C. the loop starting line 14

  D. the loop starting line 3

  Correct Answer: A

• Question 84:

  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.

  Correct Answer: B

• Question 85:

  Given:

  

  What is the result?

  A. 5

  B. 3

  C. 23

  D. 25

  E. 11

  Correct Answer: B

• Question 86:

  Given:

  

  What is the result?

  A. 2,3 4,3 4,5

  B. 2,3 4,5 4,5

  C. 2,5 4,5 4,5

  D. 2,3 4,5 4,3

  Correct Answer: C

  

• Question 87:

  Given:

  

  What is the result?

  A. The compilation fails.

  B. abdf

  C. abd

  D. adf

  E. abcd

  Correct Answer: A

• Question 88:

  Which set of commands is necessary to create and run a custom runtime image from Java source files?

  A. java, jdeps

  B. javac, jlink

  C. jar, jlink

  D. javac, jar

  Correct Answer: C

  Reference: https://blogs.oracle.com/jtc/automating-the-creation-of-jdk9-reduced-runtime-images-innetbeans

• Question 89:

  Given:

  

  What is the result?

  A. 4

  B. 3

  C. An exception is thrown at runtime.

  D. 5

  Correct Answer: D

  

• Question 90:

  Given: What is the output?

  

  A. 300

  B. Exception

  C. 200

  D. 100

  Correct Answer: A