Free Access Oracle.1Z0-819.v2024-05-25.q231 Practice Test (Page 4)

Question 11

Given the code fragment:
Path currentFile = Paths.get("/scratch/exam/temp.txt");
Path outputFile = Paths get("/scratch/exam/new.txt");
Path directory = Paths.get("/scratch/");
Files.copy(currentFile, outputFile);
Files.copy(outputFile, directory);
Files.delete (outputFile);
The /scratch/exam/temp.txt file exists. The /scratch/exam/new.txt and /scratch/new.txt files do not exist.
What is the result?

A./scratch/exam/new.txt and /scratch/new.txt are deleted.

B.The program throws a FileaAlreadyExistsException.

C.The program throws a NoSuchFileException.

D.A copy of /scratch/exam/new.txt exists in the /scratch directory and /scratch/exam/new.txt is deleted.

Question 12

Given:

What is the result?

A.Keys: 0 Values: 0 Map: 0

B.Keys: 4 Values: 4 Map: 4

C.The compilation fails.

D.Keys: 0 Values: 0 Map:

E.Keys: 4 Values: 4 Map: 0

Question 13

Given the code fragment:

What is the result?

A.2 4 6 B 10

B.2 4 6 8

C.13 5 7 9

D.1 3 5 7 9 11

Question 14

Given:

What is the result?

A.2-4

B.0-6
1-5
2-4

C.1-5

D.1-5
2-4

E.The compilation fails due to an error in line 1.

F.0-6

G.0-6
2-4

Question 15

Given:

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

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

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

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

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

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

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

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

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Question 11

Question 12

Question 13

Question 14

Question 15

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