Oracle Oracle Certifications 1Z0-811 Questions & Answers

• Question 71:

  Given:

  

  What is the result?

  A. [null:-]

  B. [ : ]

  C. [null:null]

  D. [:null]

  Correct Answer: A

  

• Question 72:

  Which two Java reserved words are used to implement encapsulation?

  A. final

  B. static

  C. public

  D. extends

  E. private

  Correct Answer: CE

  Reference: https://learn.saylor.org/mod/page/view.php?id=22044

• Question 73:

  Given the code fragment:

  

  Which code fragment can be inserted at line n1 to enable the code to print 0.0?

  A. Ball b = null;

  B. weight = 0.0;

  C. Ball.weight = 0.0;

  D. Ball b = new Ball(0.0);

  E. Ball b = new Ball();

  Correct Answer: D

  

• Question 74:

  Which two statements are true about the Java Runtime Environment (JRE)?

  A. It is responsible for garbage collection.

  B. It interprets bytecode stored in a .class file.

  C. It contains the JDK and Java APIs.

  D. It is platform independent.

  E. You must install the JRE to compile a .java file.

  Correct Answer: BD

  Reference: https://en.wikipedia.org/wiki/Java_virtual_machine

• Question 75:

  Identify two features of Java.

  A. architecture dependent

  B. platform independent

  C. single threaded

  D. robust

  Correct Answer: BD

  Reference: https://www.javatpoint.com/features-of-java