windows 10 pro office 2019 pro office 365 pro windows 10 home windows 10 enterprise office 2019 home and business office 2016 pro windows 10 education visio 2019 microsoft project 2019 microsoft project 2016 visio professional 2016 windows server 2012 windows server 2016 windows server 2019 Betriebssysteme office software windows server https://softhier.com/ instagram takipçi instagram beğeni instagram görüntüleme instagram otomatik beğeni facebook beğeni facebook sayfa beğenisi facebook takipçi twitter takipçi twitter beğeni twitter retweet youtube izlenme youtube abone instagram

Java Stream API lazy evaluation internals

Asked By: Anonymous

I’m writing an article about the Java Stream API. I’ve read the whole package documentation for Stream, and I’ve looked through similar questions here.

If I said the following:
"Intermediate operations on a stream are not evaluated until the terminal operation is hit, which will actually perform them,"
would I be correct? I’ve seen mixed answers on StackOverflow, and also each intermediate operation returns a Stream, so I was wondering if it just returned itself and then just kept track of the the intermediate operations to perform as it went along. Is this what is meant by "lazy evaluation/execution"?

the following javadoc is giving me mixed signals honestly.. maybe I’m just stupid

Intermediate operations return a new stream. They are always lazy;
executing an intermediate operation such as filter() does not actually
perform any filtering, but instead creates a new stream that, when
traversed, contains the elements of the initial stream that match the
given predicate. Traversal of the pipeline source does not begin until
the terminal operation of the pipeline is executed.

Thanks so much for your time! Sorry if I’m missing something ;( I’ve been stuck on this for a long time!

P.S: Stream and lazy evaluation is very similar, but
"Each intermediate operation creates a new stream, stores the provided operation/function and return the new stream." So basically, my question is, by new stream, does it mean the same stream that it was given?


Solution

Answered By: Anonymous

If I said the following: "Intermediate operations on a stream are not evaluated until the terminal operation is hit, which will actually perform them," would I be correct?

Yes.

I was wondering if it just returned itself and then just kept track of the the intermediate operations to perform as it went along.

No.

It is returning a new Stream object which is defined in terms of the previous Stream object.

techinplanet staff

Porno Gratuit Porno Français Adulte XXX Brazzers Porn College Girls Film érotique Hard Porn Inceste Famille Porno Japonais Asiatique Jeunes Filles Porno Latin Brown Femmes Porn Mobile Porn Russe Porn Stars Porno Arabe Turc Porno caché Porno de qualité HD Porno Gratuit Porno Mature de Milf Porno Noir Regarder Porn Relations Lesbiennes Secrétaire de Bureau Porn Sexe en Groupe Sexe Gay Sexe Oral Vidéo Amateur Vidéo Anal

Windows 10 Kaufen Windows 10 Pro Office 2019 Kaufen Office 365 Lizenz Windows 10 Home Lizenz Office 2019 Home Business Kaufen windows office 365 satın al follower kaufen instagram follower kaufen porno