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1z0-819 Exam Dumps - Java SE 11 Developer

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Question # 9

Given:

Why does D cause a compilation error?

A.

D inherits a() only from C.

B.

D inherits a() from B and C but the return types are incompatible.

C.

D extends more than one interface.

D.

D does not define any method.

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Question # 10

Given:

What is the output?

A.

Hello world!Bonjour le monde!

B.

Hello world!Hello world!

C.

Bonjour le monde!Hello world!

D.

Bonjour le monde!Bonjour le monde!

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Question # 11

Given:

List longlist = List.of(“Hello”,”World”,”Beat”);

List shortlist = new ArrayList<>();

Which code fragment correctly forms a short list of words containing the letter “e”?

A.

Option A

B.

Option B

C.

Option C

D.

Option D

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Question # 12

Given:

A) An exception is thrown at run time.

B)

C) The compilation fails due to an error on line 2.

D) The compilation fails due to an error on line 1.

E)

F)

The compilation fails due to an error on line 3.

A.

Option A

B.

Option B

C.

Option C

D.

Option D

E.

Option E

F.

Option F

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Question # 13

Given:

What is the result?

A.

The compilation fails.

B.

1.99,2.99,0

C.

1.99,2.99,0.0

D.

1.99,2.99

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Question # 14

Given:

What is the result?

A.

2134

B.

234

C.

2341

D.

214

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Question # 15

Which describes an aspect of Java that contributes to high performance?

A.

Java prioritizes garbage collection.

B.

Java has a library of built-in functions that can be used to enable pipeline burst execution.

C.

Java monitors and optimizes code that is frequently executed.

D.

Java automatically parallelizes code execution.

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Question # 16

Given these two classes:

And given this fragment:

Which describes the fragment?

A.

It throws IllegalMonitorStateException.

B.

It is subject to deadlock.

C.

It is subject to livelock.

D.

The code does not compile.

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