November 2023
Intermediate to advanced
382 pages
6h 28m
German
Content preview from Java lernen – kurz & gut
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3Strings
Wir haben schon ein paar Mal Strings verwendet, ohne viel darüber nachzudenken. Als kurze Erinnerung: Variablen vom Typ String modellieren Zeichenketten und dienen zur Verwaltung von textuellen Informationen. In diesem Kapitel schauen wir uns die Thematik genauer an.
3.1Schnelleinstieg
Strings bestehen aus einer Folge einzelner Zeichen und lassen sich als Zeichenkette in doppelten Anführungszeichen erzeugen:
jshell> String info = "Please don't touch!"
info ==> "Please don't touch!"
3.1.1Gebräuchliche Stringaktionen
Stringkonkatenation – '+'
Ein gebräuchlicher Anwendungsfall ist das Zusammenfügen von Strings, auch Konkatenieren genannt. Dazu dient bekanntlich der Operator '+'. Nachfolgend definieren wir den Vor- und Nachnamen des ...
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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.