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Exam 1z0-809 topic 1 question 110 discussion

Actual exam question from Oracle's 1z0-809
Question #: 110
Topic #: 1
[All 1z0-809 Questions]

Given:
and

Which interface from the java.util.function package should you use to refactor the class Txt?

  • A. Consumer
  • B. Predicate
  • C. Supplier
  • D. Function
Show Suggested Answer Hide Answer
Suggested Answer: B 🗳️
by JME_CHG at March 5, 2021, 8:52 a.m.

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Sigamani
Highly Voted 3 years, 7 months ago
B is correct. predicate accepts one parameter and returns boolean value
upvoted 9 times
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JME_CHG
Highly Voted 3 years, 10 months ago
B, return is boolean, and takes 1 argument...
upvoted 7 times
...
shivkumarx
Most Recent 9 months ago
Selected Answer: B
It is predicate, we can replace the annoymous local class with a Predicate implementation: Predicate<String> checkLength = str -> str.length()>5 && str.length()<10; boolean res = checkLength("Hello");
upvoted 1 times
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asdfjhfgjuaDCV
10 months ago
B is the correct answer
upvoted 1 times
...
steefaand
11 months ago
Selected Answer: B
B is correct as Predicate accepts one argument and returns boolean.
upvoted 1 times
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MatthewTannous
2 years, 5 months ago
Selected Answer: B
B because predicates return a boolean value
upvoted 4 times
...
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