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Oracle Updated 1z0-819 Exam Questions and Answers by ashton

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Oracle 1z0-819 Exam Overview :

Exam Name: Java SE 11 Developer
Exam Code: 1z0-819 Dumps
Vendor: Oracle Certification: Java SE
Questions: 296 Q&A's Shared By: ashton
Question 28

Given:

Questions 28

executed using command:

java Hello “Hello World” Hello World

What is the output?

Options:

A.

An exception is thrown at runtime.

B.

Hello WorldHello World

C.

Hello World Hello World

D.

Hello WorldHelloWorld

E.

HelloHello WorldHelloWorld

Discussion
Question 29

Given the formula to calculate a monthly mortgage payment:

Questions 29

and these declarations:

Questions 29

How can you code the formula?

Options:

A.

m = p * (r * Math.pow(1 + r, n) / (Math.pow(1 + r, n) - 1));

B.

m = p * ((r * Math.pow(1 + r, n) / (Math.pow(1 + r, n)) - 1));

C.

m = p * r * Math.pow(1 + r, n) / Math.pow(1 + r, n) - 1;

D.

m = p * (r * Math.pow(1 + r, n) / Math.pow(1 + r, n) - 1);

Discussion
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Question 30

Given the code fragment:

Questions 30

What is the result?

Options:

A.

false true true

B.

true false false

C.

false false true

D.

false true false

Discussion
Question 31

Given:

Questions 31

It is required that if p instanceof Pair then p.isValid() returns true.

Which is the smallest set of visibility changes to insure this requirement is met?

Options:

A.

setLeft and setRight must be protected.

B.

left and right must be private.

C.

isValid must be public.

D.

left, right, setLeft, and setRight must be private.

Discussion
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