A

Admin • 828.03K Points
Coach

Q. What functional interface would you use with `String::length` in a stream mapping?

  • (A) Function<String, Integer>
  • (B) Predicate<String>
  • (C) Supplier<Integer>
  • (D) Consumer<String>
Explanation by: Admin
`Function<String, Integer>` matches input String and returns Integer length.

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