September 2018
Intermediate to advanced
410 pages
12h 43m
German
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7Lambdas und Streams
Für Java 8 wurde die Sprache um funktionale Schnittstellen, Lambdas und Methodenreferenzen erweitert, um das Erzeugen von Funktionsobjekten zu vereinfachen. Parallel zu diesen Erweiterungen wurde die Streams-API als bibliotheksseitige Unterstützung für die Verarbeitung von Datenelement-Folgen hinzugefügt. In diesem Kapitel untersuchen wir, wie man diese neuen Möglichkeiten am besten nutzt.
7.1Thema 42: Lambdas sind oft besser als anonyme Klassen
Früher dienten die Schnittstellen – oder, seltener, abstrakte Klassen – mit einer einzigen abstrakten Methode als Funktionstypen. Ihre Instanzen, die sogenannten Funktionsobjekte, repräsentieren Funktionen oder Aktionen. Seit der Veröffentlichung des JDK 1.1 im Jahr 1997 waren anonyme ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.