Scala Learning Review (i)----Scala's environment building

Note: This study originates from: DT Big Data DreamWorks (public number: Dt_spark)

1. Download the Scala installation package First:

For subsequent spark Learning, we need to choose version:2.10.4

Http://www.scala-lang.org/download/2.10.4.html

2. After installation, choose the Scala IDE, one is the Eclipse Scala IDE, the other is Intellij idea

Because of personal preference for Intellijidea, take Intellij idea as an example.

3 . Use of idea

① New Model

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④ClickSRC,PressAlt + Insert, first create Package, and then createScala Class

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⑤ when you create a Scala class , select the Object

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4. Write the first HelloWorld program

Package Com.td.scala.hello/** * 1th Lecture: HelloWorld * Created by limin on 2015/7/24. */object Helloscala {def main (args:array[string]): Unit = {println ("Hello Scala!!!    A New world! ") for (Arg <-args) println (ARG)}}

Run:

Result:Hello Scala!!! A New world!

You can also customize incoming values:

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Resources:

DT Big Data Dream Factory public number: Dt_spark

This article is from "My Heart Flying" blog, please make sure to keep this source http://10562836.blog.51cto.com/10552836/1678247

Scala Learning Review (i)----Scala's environment building