How to create an infinite stream with Java 8

February 22, 2023 by Tarik

Yes, there is an easy way:

IntStream.iterate(0, i -> i + 2);

With as usecase:

IntStream.iterate(0, i -> i + 2)
         .limit(100)
         .forEach(System.out::println);

Which prints out 0 to 198 increasing in steps of 2.

The generic method is:

Stream.iterate(T seed, UnaryOperator<T> f);

The latter may be more uncommon in usage.