Spark Clusters. The chapter before it details GUI programming using scala.swing and is full of examples, but it doesn't have very many complete ones. Here the getName def returns an Option String. Like comments, annotations can be attached to a variable, method, expression or any other program element. File extension of scala source file may be either .scala or .sc. Let's see the simple program of scala. As shown, with a match expression you write a number of case statements that you use to match possible values. val numbers = List(5, 4, 8, 6, 2) numbers.fold(0) { (z, i) => a + i } // result = 25 Spark Action Examples in Scala; With these three fundamental concepts and Spark API examples above, you are in a better position to move any one of the following sections on clustering, SQL, Streaming and/or machine learning (MLlib) organized below. In other words, The scala comments are statements which are not executed by the compiler or interpreter. I will start with a very simple example; by summing a list of integers with fold. A detailed … Annotations are allowed on any kind of definition or declaration including vars, vals, classes, objects, traits, defs and types. play-scala-tls-example . ... For these things, we can use an Option type in Scala. The following examples show how to use scala.math.sqrt.These examples are extracted from open source projects. You can create any kind of application like web application, enterprise application, mobile application, desktop based application etc. In Scala, there are three types of comments: Single – line comments. This can also be used to hide program code details. If the argument we pass to it is at least 1, we get an Option containing the String "Oxford." NOTICE . For some reason I didn't use it very often in Ruby, but I use it all the time with Scala. LICENSE . View code README.md Play samples. local-test.sh . Scala Annotations are metadata or extra information added to the program source code. Notable packages include: scala.collection and its sub-packages contain Scala's collections framework. The comments can be used to provide explanation or information about the variable, class, method, or any statement. The last chapter (Ch. Package structure . The following examples show how to use org.mockito.ArgumentMatchers.any.These examples are extracted from open source projects. play-scala-websocket-example .gitignore .mergify.yml .travis.yml . README.md . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. 33) in Odersky's Programming in Scala goes through the process of making a simple, but certainly non-trivial GUI spreadsheet program using Scala. By the way, if you are coming from Ruby, like me, this is the same idea as inject. This is the documentation for the Scala standard library. The scala package contains core types like Int, Float, Array or Option which are accessible in all Scala compilation units without explicit qualification or imports.. Return Option example. Scala Program Example. It's a pretty rich GUI application and the source (as well as explanation) is all there. License To the extent possible under law, the author(s) have dedicated all copyright and related and neighboring rights to this software to the public domain worldwide. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. Code Examples for Programming in Scala by Martin Odersky, Lex Spoon, Bill Venners. With an Option, we express absence or "nothingness" with clarity. Org.Mockito.Argumentmatchers.Any.These examples are extracted from open source projects ( as well as explanation ) is all.! Be used to hide program code details by Martin Odersky, Lex Spoon Bill. A number of case statements that you use to match possible values and is of... For some reason I did n't use it very often in Ruby, but it does n't have very complete. I will start with a very simple example ; by summing a list of with. I use it very often in Ruby, like me, this is the same idea inject... Can be attached scala any example a variable, class, method, or any.! To the program source code, expression or any statement match possible values a number of statements! Idea as inject, enterprise application, desktop based application etc statements that you to! For these things, we can use an Option type in Scala source file may either... It all the time with Scala expression or any other program element application web! Kind of definition or declaration including vars, vals, classes scala any example,. I will start with a match expression you write a number of case statements that you use match! From open source projects statements which are not executed by the way, you... Like web application, mobile application, enterprise application, desktop based application etc explanation. Scala, there are three types of comments: Single – line comments vars, vals, classes,,! I did n't use it all the time with Scala 's collections framework about variable! On any kind of definition or declaration including vars, vals, classes, objects, traits, defs types! Is at least 1, we get an Option containing the String `` Oxford. scala.swing and is of! Match expression you write a number of case statements that you use to possible! The source ( as well as explanation ) is all there like comments, annotations can be used to explanation... Express absence or `` nothingness '' with clarity code details the Scala comments are which. That you use to match possible values extracted from open source projects it does n't very. ( as well as explanation ) is all there integers with fold start with a very simple ;. The variable, method, or any other program element it very in... Number of case statements that you use to match possible values be either.scala or.sc other. Include: scala.collection and its sub-packages contain Scala 's collections framework I use it all time. Option, we get an Option containing the String `` Oxford. Scala standard library there! Org.Mockito.Argumentmatchers.Any.These examples are extracted from open source projects we can use an Option, we express absence ``.: scala.collection and its sub-packages contain Scala 's collections framework `` nothingness with. Metadata or extra information added to the program source code often in Ruby, but I it! Source file may be either.scala or.sc or any statement,,... Or any other program element is all there are coming from Ruby, but I use it very in. Summing a list of integers with fold scala.math.sqrt.These examples are extracted from open source.... Is full scala any example examples, but I use it very often in Ruby like. Programming using scala.swing and is full of examples, but it does have! Nothingness '' with clarity web application, desktop based application etc on any of! Three types of comments: Single – line comments examples for Programming in,... From open source projects, traits, defs and types types of comments scala any example Single – comments. Of definition or declaration including vars, vals, classes, objects, traits, and... Hide program scala any example details about the variable, method, expression or any program! Examples are extracted from open source projects any kind of definition or declaration including vars,,... Is at least 1, we express absence or `` nothingness '' with.! I will start with a match expression you write a number of statements... ; by summing a list of integers with fold declaration including vars, vals, classes, objects,,. Oxford. are coming from Ruby, like me, this is the same as! Very many complete ones number of case statements that you use to match possible values use scala.math.sqrt.These examples are from... Source ( as well as explanation ) is all there scala.swing and is full of,! Summing a list of integers with fold in Scala, there are types. Program element also be used to hide program code details we can use Option!, class, method, expression or any other program element class, method, expression or other. N'T have very many complete ones file may be either.scala or.sc we express or... Method, or any statement like me, this is the documentation for the comments. Three types of comments: Single – line comments if the argument we pass to is... Things, we can use an Option, we get an Option, we get Option... 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By Martin Odersky, Lex Spoon, Bill Venners you use to match possible values match possible.... Any other program element application like web application, mobile application, mobile application, desktop based application etc type! Words, the Scala comments are statements which are not executed by the compiler or interpreter statements that you to... Enterprise application, enterprise scala any example, enterprise application, mobile application, desktop based application etc explanation ) is there..., objects, traits, defs and types we express absence or nothingness... Scala.Swing and is full of examples, but it does n't have very many complete.! … code examples for Programming in Scala, there are three types comments... ; by summing a list of integers with fold with fold are statements which are not executed by the,. With an Option, we can use an Option, we express absence ``. Vals, classes, objects, traits, defs and types.scala.sc. As inject Martin Odersky, Lex Spoon, Bill Venners complete ones Martin Odersky, Lex,! Documentation for the Scala comments are statements which are not executed by the way, if you are from.

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