September 2018
Intermediate to advanced
398 pages
9h 43m
English
Content preview from Scala Programming Projects
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Working with tuples
Type the following in the Scala Console to get more familiar with tuples. Feel free to experiment with different types and sizes of tuples:
scala> val tuple3 = (1, "hello", 2.0)tuple3: (Int, String, Double) = (1,hello,2.0)scala> tuple3._1res1: Int = 1scala> tuple3._2res2: String = helloscala> val (a, b, c) = tuple3a: Int = 1b: String = helloc: Double = 2.0
You can create tuples of any length up to 22, and access their elements using _1, _2, and so on. You can also declare several variables in one go for each element of the tuple.
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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.