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1Z0-819 Online Practice Questions and Answers

Questions 4

Given:

What is the result?

A. abyssinian oxicat korat laperm bengal sphynx

B. abyssinian bengal korat laperm oxicat sphynx

C. sphynx oxicat laperm korat bengal abyssinian

D. nothing

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Questions 5

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

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Questions 6

What is the result?

A. 357

B. 35

C. 235

D. 2357

E. An ArrayIndexOutOfBoundsException is thrown at runtime.

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Questions 7

Given:

What is the result?

A. It throws a runtime exception.

B. Value of Euler = 2.71828

C. The code does not compile.

D. Value of Euler = "2.71828"

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Questions 8

Which two statements independently compile? (Choose two.)

A. List list = new ArrayList();

B. List list = new ArrayList();

C. List list = new ArrayList();

D. List list = new ArrayList();

E. List list = new ArrayList();

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Questions 9

Given:

What is the result?

A. Option A

B. Option B

C. Option C

D. Option D

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Questions 10

Given:

Taking into account that the order of the elements is unpredictable, what is the output?

A. {am=2, first=1, mismatch=1, second=2}

B. {mismatch=2, am=2, first=1, second=1}

C. {l=mismatch, 2=am}

D. {mismatch=1, am=2, first=1, second=1}

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Questions 11

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));

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Questions 12

Given the content: What is the result?

A. Option A

B. Option B

C. Option C

D. Option D

E. Option E

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Questions 13

Given:

Which two lines can replace line 1 so that the Y class compiles? (Choose two.)

A. map.forEach((k, v) -> set(v)));

B. set(map.values());

C. super.set(List map)

D. super.set(map.values());

E. set(map)

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Exam Code: 1Z0-819
Exam Name: Java SE 11 Developer
Last Update: May 10, 2024
Questions: 315 Q&As

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