What is the use of count here at the end of a Java 8 thread

Question

I am a bit confused about the usefulness of using count () here in this code:

Stream.iterate(1, (Integer n) -> n + 1)
    .peek(n -> System.out.println("number generated  - " + n))
    .filter(n -> (n % 2 == 0))
    .peek(n -> System.out
    .println("Even number filter passed for  –" + n))
    .limit(5).count();

With count () added to the end of the stream, I get what I want to show this result:

number generated - 1 number generated - 2 Even number filter passed for –2 number generated - 3 number generated - 4 Even number filter passed for –4 number generated - 5 number generated - 6 Even number filter passed for –6 number generated - 7 number generated - 8 Even number filter passed for –8 number generated - 9 number generated - 10 Even number filter passed for –10

but if I remove count () from the end of the stream statement, I did not get any result.

Answer 1

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Answer 2

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