Free Oracle 1Z0-819 Exam Questions

Become Oracle Certified with updated 1Z0-819 exam questions and correct answers

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Total 515 Questions | Updated On: Jan 09, 2025

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Question 1

Given:

and

What is the result?

A : NullPointerException is thrown at run time.

B : compilation fails.

C : 1Nullnull

D : 111

E : ClassCastException is thrown at run time.

Answer: B

Question 2

Given:

Which action must you perform to print Verified?

A : Make the verify method public and invoke it from the main method.

B : Invoke the verify method from the place method.

C : Change the declaration of the order variable to orderService order = New order(); and Invoke the verify method from the main method.

D : Invoke the verify method from the main method.

Answer: B

Question 3

Given:

Which annotation should be used to remove warnings from compilation?

A : @SuppressWarnings on the main and print methods

B : @SuppressWarnings(''unchecked'') on main and @SafeVarargs on the print method

C : @SuppressWarnings(''rawtypes'') on main and @SafeVarargs on the print method

D : @SuppressWarnings(''all'') on the main and print methods

Answer: B

Question 4

Which three guidelines are used to protect confidential information? (Choose three.)

A : mit access to objects holding confidential information.

B : early identify and label confidential information.

C : nage confidential and other information uniformly.

D : ansparently handle information to improve diagnostics.

E : eat user input as normal information.

F : lidate input before storing confidential information.

G : capsulate confidential information.

Answer: A,D

Question 5

Which two expressions create a valid Java Path instance? (Choose two.)

A : Paths.get("foo")

B : Paths.getPath("too")

C : Path.get(new URI("file:///domains/oracle/test.txt"))

D : new Path("foo")

E : Paths.get(URL.create("file:///domains/oracle/test.txt"))

Answer: A,E

Page: 1 / 103

Total 515 Questions | Updated On: Jan 09, 2025

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