online. Tell me about Scala's installation. The download address is in http://scala-lang.org/download/2.11.7.html.
123456789
Wget-c http://downloads.typesafe.com/scala/2.11.7/scala-2.11.7.tgzTar zxf scala-2.11.7CD scala-2.11.7./bin/scalaWelcome to
[Big data from introductory to discard series tutorial] in Idea's Java project, configure and join Scala, write and run Scala's Hello WorldOriginal link: http://www.cnblogs.com/blog5277/p/8615984.htmlOriginal Author: Blog Park------Click on the menu below to view Big data Getting started all tutorialsBig data from getting started to giving upUrl:Http://www.cnblogs.com/blog5277/category/1179528.htmlSplit ***********************************In fact, the
The main contents of this section
About Scala
Why to learn Scala
Scala language Preliminary
1. Introduction to ScalaThe Scala (Scala language abbreviation) language is a common programming language that runs on both the JVM and the. NET platform and can
Numeric type of 1.ScalaScala's numeric types are similar to Java's, and their scope is consistent with Java. Unlike Java, they are objects and are instances of the corresponding numeric classes. Scala provides powerful support for these numeric types through rich-Wrapper classes.1.1. Numeric typeScala's numeric type and range of values are shown in the table below.
Boolean:true or False
Byte:8 bit, signed (2-7 ~ 27-1)
Short:16 bit, si
---------------------Preface---------------------Project relationship and want to do data analysis and image display with Spark GRAPHX, but only if Spark;spark is based on Scala, Scala is Java based ...So, in the case of Spark GraphX, the technology stack should generally be like this: Spark GraphX----, Scala, Java Java has been so many years ...Let's just say th
Tags: mirrored variable probabilities out language development Environment SDN path Java versionI. Introduction of Scala1. Processing big data with sparkThis is one of the main applications of Scala, and Spark is also written in Scala.2. Script language version of JavaYou can write Scala scripts directly, or you can use Scala
1.If statementsScala's If statement can complete the IF statement in other languages, at the same time, if/else usually has values that can be used to assign values, or instead of the ternary conditional operator (?:). However, it can be more powerful than the conditional operator because you can write very complex blocks in If-else.1.1. Common IF statements package com.tv189.foundation Span style= "color: #008000;" >/** * Created by Molyeo on 2015/7/30. */ object ifcondition {def main (ar
[TOC]
Array fixed-length arraysIf you need an array of the same length, you can use the arrays in Scala. For example:val numsArray = new Array[Int] (30) //长度为30的整数数组,所有元素初始化为0val stringArrays = new Array [String] (30) //长度为30的字符串数组,所有元素初始化为nullval sHello = Array("Hello", "World") //长度为2的Array[String]类型是推断出来的,已提供初始值就不需要newsHello(0) = "Hello Tom",使用()而不是[]来访问元素In the JVM, Scala's array is implemented as a Java array. The array in the example is of
The main contents of this section
Scala class Hierarchy Overview
How to implement the native type of Scala
Nothing, NULL type resolution
Traits Introduction
Traits several different ways to use
1 Scala class hierarchiesThe class hierarchy chart in Scala is as follows:Source: Programming in
SCALA Study Notes (1), SCALA Study Notes (Variable
When obtaining the variable value is time-consuming, you can use lazy var.Lazy val forLater = someTimeConsumingOperation ()
Scala> val first: rest = List (1, 2, 3)First: Int = 1Rest: List [Int] = List (2, 3)Function Definition
"=" Is not just used to separate the function signature and function body. It also ser
In the previous article we described how to install Scala and how to configure environment variables
Next we'll explain how to use the interpreter to write simple Scala code
Open the console and enter Scala development mode:
bokee@debian70:~$ Scala
Welcome to Scala version
Install Scala and Scala IDE in Ubuntu 16.04 and Windows1. Download 1.1Scala
Http://www.scala-lang.org/download/ for Windows
Http://www.scala-lang.org/download/2.11.8.html (Linux)
Below:
Download 1.2ScalaIDE
: Http://scala-ide.org/download/sdk.html
2. Install Scala in Windows
Environment: Windows10 + JDK1.7 + Scala2.11
mailbox to send and receive messages. The actor can reuse threads, so millions of actors can be used in the program, and only thousands of threads can be created. In Versions later than 2.10, akka is used as its default actor.
Tutorial:
* Official Website documentation (you can query related APIs)
* Scalatutorial (Official short tutorial)
* Scala school! (The tutorials hosted by Twitter on GitHub are ver
Welcome to visit
This journey contains a few streamlined introductions: the most common features of Scala are presented. It is designed to help beginners learn the language.
This is just a brief introduction, not a complete language tutorial. If you can, consider buying a book or reviewing other resources.
What is Scala?
Scala is a modern, multi-paradigm programm
Build a scala environment in linux and write a simple scala Program (Code tutorial), linuxscala
Installing the scala environment in linux is very simple. If it is a ubuntu environment, it will be simpler. You can directly use apt-get to solve the problem. I just use ubuntu. java/scala systems must be based on jdk, so
Scala details --------- installation and configuration problems, scala ---------Install Scala 2.11 In Win7
1. Download Scala 2.11Http://download.csdn.net/download/u014393736/7107595
The Scala Installation File I downloaded is actually a compressed package. You only need to d
Scala Development Environment BuildingLet's start with some of the reasons why I study Scala:
The JVM's dominance in the enterprise, Scala is also the language on the JVM, and it is likely that the future will be too much from Java to Scala.
Advanced functional programming and object-oriented integration.
Implicit references (implicit Import)Scala automatically adds several implicit references to each program, just as the Java program automatically adds a Java.lang package. In Scala, the contents of the following three packages are implicitly referenced to each program. The difference is that Scala also implicitly adds a reference to the Predef, which greatly faci
Why do you write this blog?First of all, for the Spark project, it is highly recommended to build, with IntelliJ idea (Ultimate version), if you have another hobby to try Scala ideas for Eclipse, have time to play for yourself. But it's best to follow the crowd.For Hadoop projects, Eclipse is strongly recommended.Second, out of a Bo friends to give me the need to leave a message, in order to more efficient and high-quality help everyone, comb write do
I haven't been to Scala official website for a long time. I accidentally opened the browser bookmarks tonight and found the article "Scala-Teaching O-O" on the home page, and the Updated is just Updated yesterday:
2010-10-18
,), And the title is quite attractive.
Yann, Assistant Professor in Paris, chose Scala and Simply
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