July 2017
Intermediate to advanced
796 pages
18h 55m
English
Content preview from Scala and Spark for Big Data Analytics
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Run Scala interactively!
The scala command starts the interactive shell for you, where you can interpret Scala expressions interactively:
> scalaWelcome to Scala 2.11.8 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_121).Type in expressions for evaluation. Or try :help.scala>scala> object HelloWorld { | def main(args: Array[String]){ | println("Hello, world!") | } | }defined object HelloWorldscala> HelloWorld.main(Array())Hello, world!scala>
The shortcut :q stands for the internal shell command :quit, used to exit the interpreter.
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