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Exam 1z0-809 topic 1 question 116 discussion

Actual exam question from Oracle's 1z0-809
Question #: 116
Topic #: 1
[All 1z0-809 Questions]

Given:
and the code fragment:

Which two code fragments, when inserted at line n1 independently, enable the code to print TruckCarBike?

  • A. .sorted ((v1, v2) -> v1.getVId() < v2.getVId())
  • B. .sorted (Comparable.comparing (Vehicle: :getVName)).reversed ()
  • C. .map (v -> v.getVid()) .sorted ()
  • D. .sorted((v1, v2) -> Integer.compare(v1.getVId(), v2.getVid()))
  • E. .sorted(Comparator.comparing ((Vehicle v) -> v.getVId()))
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Suggested Answer: DE 🗳️
by laura_lu93 at Feb. 28, 2021, 2:23 p.m.

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laura_lu93
Highly Voted 3 years, 4 months ago
correct are D and E. tested! because C print their ID not their Name
upvoted 6 times
mevlt
2 years, 4 months ago
Actually C is Runtime Exception because Vehicle class doesn't implement Comparable interface.
upvoted 1 times
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asdfjhfgjuaDCV
Most Recent 4 months ago
D and E are the correct answer
upvoted 1 times
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steefaand
5 months, 2 weeks ago
Selected Answer: DE
D and E are correct.
upvoted 1 times
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lnrdgst
2 years, 2 months ago
I believe that the letter D is also incorrect because there is no method v2.getVid() but v2.getVId(). If alternative D had the call to method v2.getVId it would be right. No other alternative compiled, unfortunately only letter E is true by my tests.
upvoted 1 times
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Eason_from_the_future
2 years, 10 months ago
B should be ".sorted(Comparator.comparing(Vehicle::getvName).reversed())"
upvoted 2 times
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B (20%)
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