Lesson 2-6 Matching items - slide error?

Lists of slides:

s.findFirst (predicate p)

s.findAny (predicate p)

but I see in the API documentation, that the following methods on the stream interface:

s.findFirst)

s.findAny)

that is, they take no parameters. Can you confirm if there is typo in the slide, or if the methods with the signature in the slide exist on another class somewhere.

Yes, who does not resemble a mistake in the slides. FindFirst() and findAny() methods take no parameters. It is easy to confuse these with anyMatch/allMatch/noneMatch, which take predicates.

The typical way to use findFirst/findAny, is to have a filter upstream has the predicate:

Stream.Filter (Predicate). FindFirst()

Tags: Java

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