Given the code fragment:
Which statement can be inserted into line n1 to print 1,2; 1,10; 2,20;?
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1z0-809 Exam - Question 128
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Correct Answer: AB
To achieve the desired output, it is necessary to use an appropriate functional interface that can be passed to the forEach method of the Map interface. The forEach method expects a BiConsumer, which is a functional interface that accepts two input arguments and does not return a result. Therefore, using BiConsumer<Integer, Integer> with the appropriate implementation will print the key-value pairs as required. The correct statement to insert at line n1 is: BiConsumer<Integer,Integer> c = (i, j) -> {System.out.print(i + "," + j + "; ");}. This matches option A.
Discussion
9 commentspul26Option: A
Dec 9, 2020Answer is A
sansay61Option: A
Dec 22, 2020Function has an apply method. So its not b. Also biconsumer has <t,t> signature. So the answer is A
jduarteOption: A
Apr 8, 2021Answer is A. Tested.
WilsonKKerllOption: A
Apr 1, 2022Answer is A.
lchowenOption: A
Sep 21, 2022forEach accepts Consumer or BiConsumer so B is definitely not correct. Answer is A
shifasaleemOption: A
Nov 30, 2022Answer is A
duydnOption: A
Sep 22, 2023A is correct. Function use apply(), Consumer use accept(). Function<T, R> -> return R Consumer<T> -> void
steefaandOption: A
Feb 7, 2024A is correct since forEach accepts Consumer or BiConsumer.
DarGrinOption: A
May 31, 2024Answer is A. ForEach for Map Interface needs a BiConsumer, not BiFunction