Oracle Oracle Certifications 1Z0-811 Questions & Answers

• Question 41:

  Given: Which statement, when inserted at line n1, enables the Course class to compile?

  

  A. int newFee;

  B. double newFee;

  C. long newFee;

  D. float newFee;

  Correct Answer: B

• Question 42:

  Given the code fragment:

  

  Which statement is true?

  A. A compilation error occurs at line 5.

  B. A compilation error occurs at line 3.

  C. The code compiles without errors.

  D. A compilation error occurs at line 7.

  Correct Answer: C

• Question 43:

  

  Identify two class variables.

  A. private static int numberOfSquares = 20;

  B. public static int counter = 0;

  C. private Measure cm;

  D. public int size = 10;

  E. int scale = 35;

  Correct Answer: AB

  Reference: https://www.tutorialspoint.com/What-are-class-variables-instance-variables-and-local-variables-in-Java

• Question 44:

  Which statement is valid?

  A. int 2 totalScore = 0;

  B. int total-score = 0;

  C. int totalScore2 = 0;

  D. int total score = 0;

  Correct Answer: A

  Reference: https://liveexample.pearsoncmg.com/html/TotalScore.html

• Question 45:

  Given the code fragment:

  

  What is the result?

  A. false false false false

  B. true false false false

  C. true true true true

  D. true true true false

  Correct Answer: C

• Question 46:

  

  Identify two valid data types for the operands of the addition (+) operator?

  A. string

  B. boolean

  C. numeric

  D. array

  Correct Answer: AD

  Reference: https://www.iitk.ac.in/esc101/05Aug/tutorial/java/nutsandbolts/arithmetic.html

• Question 47:

  Given the code fragment: What is the result?

  

  A. false false -1

  B. true false 0

  C. true true 0

  D. false true -1

  Correct Answer: B

  

• Question 48:

  You have a microprocessor board, such as Raspberry PI, wired to control a drone.

  Which edition of Java is geared towards use of simple, closed systems with constrained memory requirements, such as a microprocessor board?

  A. Java Micro Edition

  B. Java Standard Edition with a Compact Profile

  C. Java Enterprise Edition

  D. Java SE Embedded

  Correct Answer: D

  Reference: https://www.oracle.com/technical-resources/articles/java/raspberrypi.html

• Question 49:

  Given the code fragment: Which code fragment, when inserted at line n1, enables the code to print one?

  

  A. char var = `1';

  B. String var = "1";

  C. int var = 1;

  D. String var = 1;

  Correct Answer: B

  

• Question 50:

  Which statement is true about a mutator method?

  A. It replaces the default constructor.

  B. It returns mutated instance members.

  C. It must be declared private.

  D. It can be used to assign data to instance members.

  Correct Answer: B

  Reference: https://core.ac.uk/download/pdf/4824892.pdf