Can it be done in standalone mode and if so how does one go about it? I compiled a jar using SBT and followed the readme on how to use scala-ts in standalone mode, but I keep getting ava.lang.NoClassDefFoundError errors. Is there a FAQ o...
This is an excerpt from the Scala Cookbook (partially modified for the internet). This is Recipe 12.8, “How to use serialization in Scala (Serializable trait).” Problem You want to serialize a Scala class and save it as a file, or send it across a network. Solution The general ...
This is an excerpt from the 1st Edition of theScala Cookbook(#ad)(partially modified for the internet). This is Recipe 20.6, “Scala best practice: How to use the Option/Some/None pattern.” Problem For a variety of reasons, including removingnullvalues from yourScalacode, you want to use...
You have to first go to Scalacube.com, log in to your account, then select a server to purchase. Where can I find the "Servers" tab? Once you're logged in to Scalacube.com, you'll find the "Servers" tab in the main navigation bar. How do I install a game server? You can ins...
Mutable maps are required when we need to add more elements to the map after declaring it. For creating a mutable map usescala.collection.mutable.Mapor import the same for creating an immutable map. Syntax var map_name = collection.mutable.Map( "key1"->"value1", "key2"->"value2", ...
Programming Languages :ListBuffer(Java, Scala) Adding New elments to ListBuffer Programming Languages :ListBuffer(Java, Scala, C++) You can convert this ListBuffer to a List if you need to use some characteristics of list: val listName = listBufferName.toList ...
中Infinite list 叫Stream): import scala.collectionimmutable.Stream def unfold[A, P](f: P => A, g: P => P)(p: P): Stream[A] = { f(p) #:: unfold(f, g)(g(p)) } val infInt = unfold[Int, Int](p => p, p => p + 1)(1) println(infInt.take(5).toList)//=> ...
Kotlin was claimed to be a response to the massive amounts of code developers often had to write in Java and to Scala’s low-speed compilation. Today, many famous IT companies use Kotlin in their projects. The attention to this language is continuing to grow, as it wins over developers ...
To sink metrics to Prometheus, you can use this third-party library:https://github.com/banzaicloud/spark-metrics. The last step is to instantiate the source and register it with SparkEnv: %scala val source: MySource = new MySource SparkEnv.get.metricsSystem.registerSource(source) ...
programming languages, including R, Julia, and Scala. You can use it on thebest laptops for software developmentor even on a cheaper Chromebook. On top of all that, Jupyter Notebooks can be easily converted to other formats, such as PDFs or HTML. This makes them a strong tool for ...