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Exam 1z0-809 topic 1 question 128 discussion

Actual exam question from Oracle's 1z0-809

Question #: 128
Topic #: 1

[All 1z0-809 Questions]

Given the code fragment:

Which statement can be inserted into line n1 to print 1,2; 1,10; 2,20;?

A. BiConsumer<Integer,Integer> c = (i, j) -> {System.out.print (i + "," + j+ "; ");};
B. BiFunction<Integer, Integer, String> c = (i, j) ""> {System.out.print (i + "," + j+ "; ")};
C. BiConsumer<Integer, Integer, String> c = (i, j) ""> {System.out.print (i + "," + j+ "; ")};
D. BiConsumer<Integer, Integer, Integer> c = (i, j) ""> {System.out.print (i + "," + j+ "; ");};

Show Suggested Answer

Suggested Answer: A 🗳️

by pul26 at Dec. 9, 2020, 7 a.m.

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pul26

Highly Voted 4 years, 1 month ago

Answer is A

upvoted 11 times

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sansay61

Highly Voted 4 years, 1 month ago

Function has an apply method. So its not b. Also biconsumer has <t,t> signature. So the answer is A

upvoted 9 times

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DarGrin

Most Recent 8 months ago

Selected Answer: A

Answer is A. ForEach for Map Interface needs a BiConsumer, not BiFunction

upvoted 1 times

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steefaand

11 months, 3 weeks ago

Selected Answer: A

A is correct since forEach accepts Consumer or BiConsumer.

upvoted 1 times

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duydn

1 year, 4 months ago

Selected Answer: A

A is correct. Function use apply(), Consumer use accept(). Function<T, R> -> return R Consumer<T> -> void

upvoted 1 times

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shifasaleem

2 years, 2 months ago

Answer is A

upvoted 1 times

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lchowen

2 years, 4 months ago

forEach accepts Consumer or BiConsumer so B is definitely not correct. Answer is A

upvoted 1 times

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WilsonKKerll

2 years, 10 months ago

Selected Answer: A

Answer is A.

upvoted 1 times

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jduarte

3 years, 9 months ago

Answer is A. Tested.

upvoted 5 times

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