Forums Register Login
Errata: OCP Oracle Certified Professional Java SE 8 Programmer II - Chapter 7 page 373
First sentence on page 373 says that "This code consistently outputs the first value in the serial stream, 1." where the code, the author is referring to is How is it possible for findAny to return predictable results?

on the same page too i.e. 373 the same mistake was made:

The result is that the output could be 4, 1, or really any value in the stream. You can see that with parallel streams, the results of findAny() are no longer predictable.

Somehow it feels like author is talking about findFirst();
That's correct in the book. That section is explaining that findAny() is not guaranteed to return a certain element on a parallel stream. It just happens to on a serial stream.

Whereas findFirst() loses some of the benefit of parallelism because it forces the stream to be ordered.

Does that make sense now?

This thread has been viewed 302 times.

All times above are in ranch (not your local) time.
The current ranch time is
Oct 18, 2018 07:15:33.