Linked Questions

I'm writing an explanation for some code for a course, and have been accidentally using the words method and function interchangeably. I decided to go back over and fix the wording, but ran into a ...

Coming from Java I am confused by the class/object distinction of scala. Note that I do not ask for the formal difference; there are enough references on the web which explain this, and there are ...

I'm very new to scala and now I have to work on a project which is written both in scala and java. I came across with this-like construction: class SomeType{ //... } trait Trait1 extends scala....

From an example in book "Begining in Scala", the script is: import scala.collection.mutable.Map object ChecksumAccumulator { private val cache=Map[String,Int]() def calculate(s: String):Int = ...

I am newbie to scala . I am trying to create an Object that extends abstract class like show below object Conversions extends UnitConversions { override def inchesToCentimeters(inches:Int) = inches *...

trait MyFunctionTrait extends ((Int, Int) => Double) class MyFunction1 extends MyFunctionTrait { override def apply(a: Int, b: Int) => Double = a/b } object MyFunction2 extends ...

I have started learning Scala.Is there any difference between an object in Java versus an object in Scala. As per my understanding the object created in Scala is singleton. Any other pointers please.

Suppose I have two descendants of an abstract class: object Child1 extends MyAbstrClass { ... } class Child2 extends MyAbstrClass { } Now I'd like to determine (preferably in the constructor of ...

I just learned Scala. When I read official documentation to look up Array, for example, it has two versions. One is for Class, the other is for Object. I think I know the difference between Class and ...

I am trying to learn Scala and it seems like a very powerful language so far, but some things seem hard to achieve, may be its just my learning curve. I have researched online for a few days but could ...

I got not serializable error when running this code: import org.apache.spark.{SparkContext, SparkConf} import scala.collection.mutable.ArrayBuffer object Task1 { def findHighestRatingUsers(...

I have started learning about Play, and in the tutorials that I saw, the model usually has two components: a case class and an object. I have created a model with an object and a case class. My ...

I'm reading the MEAP of the second edition of "Functional Programming in Scala" and I ran across the following in a listing: In Parsers.scala: trait Parsers[Parser[+_]]: ... extension [A]...

I don't understand why sometimes class are created inside an object in Scala, just like the following code shows. object polynomials { class Poly(terms0: Map[Int, Double]) { val terms = terms0 ...

I've been trying, for some time now, to create a local process that will act as a CLI for my server. The idea is similar to what Drush does for Drupal servers. I haven't created the CLI interface yet ...