Oracle Exam 1Z0-809 Topic 14 Question 85 Discussion

Actual exam question for Oracle's 1Z0-809 exam

Question #: 85
Topic #: 14

[All 1Z0-809 Questions]

Given the code fragment:

UnaryOperator uo1 = s -> s*2;line n1

List loanValues = Arrays.asList(1000.0, 2000.0);

loanValues.stream()

.filter(lv -> lv >= 1500)

.map(lv -> uo1.apply(lv))

.forEach(s -> System.out.print(s + '' ''));

What is the result?

A4000.0

B4000

CA compilation error occurs at line n1.

DA compilation error occurs at line n2.

Show Suggested Answer

Suggested Answer: D

by Jerrod at Apr 06, 2025, 01:24 AM

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11 hours ago

Ha! I bet someone will say the answer is 'A compilation error occurs' just to be tricky.

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2 days ago

The key is understanding the UnaryOperator type. It's going to apply the lambda function to each element in the stream, doubling the value.

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17 days ago

I think the result will be 4000.0

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18 days ago

Hmm, the question seems straightforward. I think the answer is A) 4000.0.

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