How to implement a Java stream?

Question

I want to implement a Stream.

I don\'t want to just use implements Stream, because I would have to implement a ton of met

Answer 1

For the sake of completeness, as I did not find this directly among the answers here on SO: If you want to transform an existing Iterator into a Stream (e.g., because you want to generate elements successively), use this:

StreamSupport.stream(
    Spliterators.spliterator(myIterator, /* initial size*/ 0L, Spliterator.NONNULL), 
    /* not parallel */ false);

I found this a bit hard to find, as you need to know StreamSupport, Spliterators and Spliterator