1Z0-816 Dumps

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Oracle 1Z0-816 dumps - 100% Pass Guarantee!

Rating: 4.5

Vendor: Oracle

Certifications: Oracle Java

Exam Name: Java SE 11 Programmer II

Exam Code: 1Z0-816

Total Questions: 80 Q&As ( View Details)

Last Updated: Mar 12, 2024

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Oracle 1Z0-816 Last Month Results

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1Z0-816 Q&A's Detail

Exam Code: 1Z0-816
Total Questions: 80
Single & Multiple Choice 80

1Z0-816 Online Practice Questions and Answers

Questions 1

var numbers = List.of(0,1,2,3,4,5,6,7,8,9);

You want to calculate the average of numbers.

Which two codes will accomplish this? (Choose two.)

A. double avg = numbers.stream().parallel().averagingDouble(a -> a);

B. double avg = numbers.parallelStream().mapToInt (m -> m).average().getAsDouble();

C. double avg = numbers.stream().mapToInt (i -> i).average().parallel();

D. double avg = numbers.stream().average().getAsDouble();

E. double avg = numbers.stream().collect(Collectors.averagingDouble(n -> n));

Show Answer
Questions 2

Given:

Which two are correct? (Choose two.)

A. Option A

B. Option B

C. Option C

D. Option D

E. Option E

Show Answer
Questions 3

Given:

public class X { }

and public final class Y extends X { }

What is the result of compiling these two classes?

A. The compilation fails because there is no zero args constructor defined in class X.

B. The compilation fails because either class X or class Y needs to implement the toString() method.

C. The compilation fails because a final class cannot extend another class.

D. The compilation succeeds.

Show Answer
Questions 4

Given:

Which three actions implement Java SE security guidelines? (Choose three.)

A. Change line 7 to return names.clone();.

B. Change line 4 to this.names = names.clone();.

C. Change the getNames() method name to get$Names().

D. Change line 6 to public synchronized String[] getNames() {.

E. Change line 2 to private final String[] names;.

F. Change line 3 to private Secret(String[] names) {.

G. Change line 2 to protected volatile String[] names;.

Show Answer
Questions 5

Given the code fragment:

Path source = Paths.get("/repo/a/a.txt"); Path destination = Paths.get("/repo"); Files.move(source, destination); // line 1 Files.delete (source); // line 2

Assuming the source file and destination folder exist, what Is the result?

A. A java.nio.file.FileAlreadyExistsException is thrown on line 1.

B. A java.nio.file.NoSuchFileException is thrown on line 2.

C. A copy of /repo/a/a.txt is moved to the /repo directory and /repo/a/a.txt is deleted.

D. a.txt is renamed repo.

Show Answer More Questions

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Success Stories

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