Java 8: Generate sequences with Stream.iterate + limit

Stream.iterate builds an infinite stream; limit makes it finite.

Code

List<Integer> powers = Stream.iterate(1, n -> n * 2)
        .limit(6)
        .collect(Collectors.toList());
System.out.println(powers);

Output

[1, 2, 4, 8, 16, 32]

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Published 2026-07-26