Oracle 1Z0-819 Online Practice Questions and Exam Preparation

Oracle 1Z0-819 Online Questions & Answers

• Question 71:

  Given:

  

  And the commands:

  What is the result on execution of these commands?

  A. Test.class -> java.base Test.class -> java.sql java.sql -> java.base
  B. On execution, the jdeps command displays an error.
  C. Test.class -> java.base Test.class -> java.sql
  D. Test.class -> java.sql -> java.base
  C. Test.class -> java.base Test.class -> java.sql

• Question 72:

  Which two statements are true about the modular JDK? (Choose two.)

  A. The foundational APIs of the Java SE Platform are found in the java.base module.
  B. An application must be structured as modules in order to run on the modular JDK.
  C. It is possible but undesirable to configure modules' exports from the command line.
  D. APIs are deprecated more aggressively because the JDK has been modularized.
  A. The foundational APIs of the Java SE Platform are found in the java.base module.
  C. It is possible but undesirable to configure modules' exports from the command line.

• Question 73:

  Given:

  

  What is required to make the Foo class thread safe?

  A. No change is required.
  B. Make the declaration of lock static.
  C. Replace the lock constructor call with new ReentrantLock (true).
  D. Move the declaration of lock inside the foo method.
  C. Replace the lock constructor call with new ReentrantLock (true).

• Question 74:

  Given: What is the result?

  

  A. null
  B. Joe Bloggs
  C. The compilation fails due to an error in line 1.
  D. p1
  C. The compilation fails due to an error in line 1.

• Question 75:

  Given:

  

  What is the result?

  A. nothing
  B. AA Manager: None Reports: 2
  C. AA
  D. AA Manager: None
  E. A java.lang.NullPointerException is thrown.
  E. A java.lang.NullPointerException is thrown.

• Question 76:

  Given:

  

  What is the result?

  A. X is 2
  B. The compilation fails due to an error in line 1
  C. The compilation fails due to an error in line 2
  D. Error parsing value 0
  E. X is 10
  C. The compilation fails due to an error in line 2

• Question 77:

  Given: Which option should you choose to enable the code to print Something happened?

  

  A. Add extends GeneralException on line 1. Add extends Exception on line 2.
  B. Add extends SpecificException on line 1. Add extends GeneralException on line 2.
  C. Add extends Exception on line 1. Add extends Exception on line 2.
  D. Add extends Exception on line 1. Add extends GeneralException on line 2.
  D. Add extends Exception on line 1. Add extends GeneralException on line 2.

• Question 78:

  Given:

  

  What is the output?

  A. 300
  B. Exception
  C. 200
  D. 100
  A. 300

• Question 79:

  Given:

  

  Which two constructors will compile and set the class field strings? (Choose two.)

  

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

• Question 80:

  Given:

  

  What is known about the Sportscar class?

  A. The Sportscar class is a subclass of Automobile and inherits its methods.
  B. The Sportscar subclass cannot override setTurbo method from the superclass Automobile.
  C. The Sportscar class is a superclass that has more functionality than the Automobile class.
  D. The Sportscar class inherits the setTurbo method from the superclass Automobile.
  A. The Sportscar class is a subclass of Automobile and inherits its methods.