travis scala

1.Scala Implicit thorough explanationimplicit conversion implicit, which can be manually specified to convert an object of some type, or a class, into other types of classes or objectsForm: Implicit def functionImplicit functions, implicit arguments, implicit objects, implicit classesimplicit function : Refers to a function with implicit pre-modificationScala uses the implicit conversion function's signature primarily as the input type, depending on t

In the first two articles, to run the scala. Net program, we need to copy predef. DLL to the current directory. This is unpleasant. First, I thought of adding predef. DLL to the Global Assembly Cache (GAC, Global Assembly Cache), as shown below: ben@ben-m4000t:~$ sudo gacutil -i /opt/scala-2.7.7.final/lib/predef.dllFailure adding assembly /opt/scala-2.7.7.final

Scala basic Concept +ideRecommended: "Scala Programming"1 Basic ConceptsIn spark development, Scala is considered to be the best-compatible language for current and spark. Scala run on a standard Java platform that can be used with Java seamless interaction.

Scala entry-Eclipse Development Environment setup Due to the need for deep learning, I recently started to learn Scala, an artistic programming language. Scala: a java-like programming. Integrates the features of Object-Oriented (Oriented) programming and Functional (Functional programming) programming, which facilitates the development of multi-core concurrency

To use Spark, learn Scala first.Reference Tutorial: Http://meetfp.com/zh/scala-basicOnline compilation: Http://meetfp.com/tryoutOther information: HTTP://SCALACHINA.COM/NODE/16 http://blog.csdn.net/mapdigit/article/details/21878083Characteristics: Scala is a purely object-oriented language, all objects: Unify primitive types and classes, and unify functi

Because Scala has a more complete Eclipse IDE (Scala IDE for Eclipse), it's easy, fast, and convenient for Dev who doesn't want to migrate from Eclipse to the IEA platform. It is particularly important to compile and package the development of Scala applications under Eclipse. SBT is a build tool similar to MAVEN, which we will use to build the publishing program

checksumaccumulator { private var sum = 0 = { + = b } = { return ~ (sum 0xFF) + 1 }}Any parameters passed to the method can be used inside the method. An important feature of the method parameters in Scala is that they are all Val, not var. If you want to reassign a parameter to a method, the result is a compilation failure:Scala> def Add (b:byte): Unit = { | // compile however, because B is Val | sum + = b| } a membe

Description, since Spark was written in Scala. Therefore, it is best to use Scala whether you are looking at the source code or writing spark-related codes. Then, as a programmer, the first thing to do is to sharpen the sword in hand. That's creating a code environment for writing Scala. Here because I am personally familiar with eclipse (although I think he is a

Background Notes Recent research spark need Scala to prepare a Scala environment for documenting the configuration notes.The Scala language is based on the Java language, so you have to install the JDK first. Experimental Environment: Win7 under VMware Virtual machine operating system: CentOS 6.5 x64 java:jdk-8u161-linux-x64.tar.gz scala:scala-2.12.4.tgz Install

methods for traversing collections 1. Iterating through a collection with a foreach Loop foreach receives a function as a parameter. The defined function should receive an element as an input parameter, and then do not return anything. The type of the input parameter should match the type in the collection. With the execution of foreach, it passes an element to your function every time, until the last element in the collection. The most common use of foreach is output information:

This article is mainly about Scala concurrent (parallel) programming, then why the topic is called Geotrellis use (vi), mainly because this series explains how to use Geotrellis, the specific previous several blog has been introduced. I think the basis of doing any one thing is very important, like the college entrance examination or a variety of examinations, teachers will emphasize the basis, which is very reasonable. The basics of using the Geotrel

First lesson: Getting Started with ScalaThe great value of 1:scala2:scala basic function Getting started combat3:scala function Getting Started combatArray,map,tuple Combat in 4:scala5: Comprehensive case and spark source code analysisThe relationship between Scala and Java:One: They're all JVM-based, but Scala can inv