Given:
and the code fragment:
Which two Map objects group all employees with a salary greater than 30 by neighborhood? (Choose two.)
1z0-819 Exam QuestionsBrowse all questions from this exam
1z0-819 Exam - Question 86
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Correct Answer: AC
To group all employees with a salary greater than 30 by neighborhood, we need to use both the predicate to filter the employees and the function/method to group by neighborhood. The correct options are those that correctly implement these functionalities without syntax errors. 'A' uses the function 'f' to group and the predicate 'p' to filter while 'C' uses 'getNeighborhood' to group and the predicate 'p' to filter. Both of these implementations are correct and compile without issues.
Discussion
9 commentsdillemanOptions: AC
Oct 4, 2023If you think about it this makes sence without knowing too much about the exact syntax. A: We use the function f to group and the predicate p to filter. This is correct. B: We use the predicate p both to filter and group. This does not compile since groping does not take a predicate. C: We use the getNeighborhood-method to group and the predicate to filter. This is correct. D: We correctly use the predicate to filter but use both the function and the getNeighborhood to group and this method is already defined in the function. This does not look correct with double grouping on that method. E: This is a copy of C but with extra parentheses in the end and this does not compile.
RoxyFoxy
Oct 24, 2023Your explanation is brilliant! Thank you, dilleman!
SampsOptions: AC
Dec 28, 2023correct answers are A and C
tmuralimanoharOption: C
Jun 29, 2023Answer: C
[Removed]
Aug 30, 2023A & B are correct
OmnisumemOption: A
Sep 11, 2023Tested: A.
Omnisumem
Sep 11, 2023And maybe C - if we need two correct answers...
[Removed]Option: A
Sep 27, 2023Tested, A and C.
mendjijetOption: D
Feb 9, 2024Correct are A and D Tested C and E does not compile because their provide a Map<String, List<Employee>> not Map<Optional<String>, List<employee>> B is not correct
ASPushkinOption: C
Jul 2, 2024same as 210 answer: A, C
ASPushkin
Jul 3, 2024tested D uses function f() with Optional but left site uses directly String - not compiled