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1z0-819 Exam Dumps - Oracle Java SE Questions and Answers

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Questions 4

Given:

What is the result?

Options:

A.

null

B.

Joe Bloggs

C.

The compilation fails due to an error in line 1.

D.

p1

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Questions 5

Your organization makes mlib.jar available to your cloud customers. While working on a code cleanup project for mlib.jar, you see this method by customers:

What security measures should be added to this method so that it meets the requirements for a customer accessible method?

Options:

A.

B.

Create a method that validates the hostName and portNumber parameters before opening the socket.

C.

Make enableService private.

D.

Enclose the call to new Socket In an AccessController.doPrivileged block.

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Questions 6

Given:

You want to obtain the Stream object on reading the file. Which code inserted on line 1 will accomplish this?

Options:

A.

var lines = Files.lines(Paths.get(INPUT_FILE_NAME));

B.

Stream lines = Files.readAllLines(Paths.get(INPUT_FILE_NAME));

C.

var lines = Files.readAllLines(Paths.get(INPUT_FILE_NAME));

D.

Stream lines = Files.lines(INPUT_FILE_NAME);

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Questions 7

Given:

and

Which code fragment on line 1 makes the s1 set contain the names of all employees born before January 1, 1989?

Options:

A.

Option A

B.

Option B

C.

Option C

D.

Option D

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Exam Code: 1z0-819
Exam Name: Java SE 11 Developer
Last Update: Dec 21, 2024
Questions: 296
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