Examples of programming questions in scala

Code Coverage Tools for Scala
Scala Regex enable Multiline option
Scala - can yield be used multiple times with a for loop?
How does Scala's apply() method magic work?
Preferred way to create a Scala list
How to model type-safe enum types?
How can I get the max of an arbitrary property from a list in Scala?
Scala: public static final in a class
Scala 2.8 breakOut
Is there a way to have tuples with named fields in Scala, similar to anonymous classes in C#?
Declaring multiple variables in Scala
How to create an immutable map/set from a seq?
logging in scala
Scala, repeat a finite list infinitely
Scala equivalent to Python generators?
Convert Scala Set into Java (java.util.Set)?
How to use Scala in IntelliJ IDEA (or: why is it so difficult to get a working IDE for Scala)?
initialise a var in scala
Is there a nice, safe, quick way to write an InputStream to a File in Scala?
Packaging and Deploying Scala Applications
Scala regex Named Capturing Groups
What's the (hidden) cost of Scala's lazy val?
How do I convert a Map[Int, Any] to a SortedMap in Scala? Or a TreeMap?
Converting immutable to mutable collections
Scala - printing arrays
Comparing String and Enumeration
Is there an equivalent to SuppressWarnings in Scala?
Does Scala have an API method that converts a Seq[Option[T]] to Seq[T]?
High-performance Concurrent MultiMap Java/Scala
scala return on first Some in list
Find elements in a list that are not in the second list (in scala)
How to cache results in scala?
Scala: Why does Seq.contains take an Any argument, instead of an argument of the sequence type?
Setting target JVM in SBT
What is the Scala identifier "implicitly"?
Why to use empty parentheses in Scala if we can just use no parentheses to define a function which does not need any arguments?
Cleaner way to update nested structures
Passing Java array to Scala
How do I read a large CSV file with Scala Stream class?
How to add a method to Enumeration in Scala?
scala median implementation
Scala instance variables best practice
Scala match error
Get Scala variable name at runtime
What is a function literal in Scala?
Difference between case object and object
Case Class and Implicit Arguments and Pattern Matching
Testing multiple data sets with ScalaTest
Conversion from Seq to Set and back to Seq
How to find a matching element in a list and map it in as an Scala API method?
scala: How to pass an expanded list as varargs into a method?
Scipy-like functionality in Java / Scala?
How to convert Range to List or Array in Scala
Simplest way to get the top n elements of a Scala Iterable
Accessing the next element in list to compare in Scala
In Scala, is there a neat and simple way to compare one value with multiple values
Create an immutable list from a java.lang.Iterator
Scala strip trailing whitespace
How to read a file from classpath without external dependencies?
Convert java.util.Set to scala.collection.Set
How is scala.Array a Seq?
Is Scala a Functional Programming Language?
Scala classOf for type parameter
How do I get hold of exceptions thrown in a Scala Future?
Is it possible to emulate Scala's traits in Python?
Mixing Java code in Scala program?
How to show custom failure messages in ScalaTest?
How do I create an enum in scala that has an extra field
Is there a Scala equivalent for the python enumerate?
Scala String vs java.lang.String - type inference
Need clarification on Scala literal identifiers (backticks)
Using collect on maps in Scala
Why are Arrays invariant, but Lists covariant?
How do I pass Scala enums as parameters?
How do I use POJO equivalents in Scala?
running a maven scala project
How to create a scala.collection.immutable.Seq from a Java List in Java?
How can I use Gson in Scala to serialize a List?
In Scala, what does "view" do?
Why is foreach better than get for Scala Options?
Scala constructor without parameters
How can I read a file to an InputStream then write it into an OutputStream in Scala?
Scala methods with no arguments
Converting a Scala Map to a List
The difference between 'HashSet' and 'Set' in Scala?
How would I implement a fixed size List in Scala?
Why can't a variable be a stable identifier?
Scala type mismatch problem (expected Map, found scala.collection.mutable.HashMap)
In Scala, how can I reassign tuple values?
Scala - can a lambda parameter match a tuple?
Get the specific simple name of a generic type in Scala
println vs System.out.println in Scala
How can I get complete stacktraces for exceptions thrown in tests when using sbt and testng?
How to use a foreach-loop in Scala that mutates an object?
Scala syntax for do-nothing function?
For loop in scala without sequence?
What is the standard idiom for implementing equals and hashCode in Scala?
Load Scala file into interpreter to use functions?
println in scala for-comprehension
Scala: What is the difference between Traversable and Iterable traits in Scala collections?
Built in parsing of a string to a Scala case object?
Triple colon Scala
Combining two lists in Scala
What are Scala standard exceptions?
What is the difference between = and := in Scala?
Merge maps by key
Scala List.updated
Is there a PriorityQueue implementation with fixed capacity and custom comparator?
Create a HashMap in Scala from a list of objects without looping
String formatting in scala - maximum decimal precision
Scala - obtaining a class object from a generic type
Cartesian product of two lists
mutable vs. immutable in Scala collections
Matching against a regular expression in Scala
In Scala, what exactly does 'val a: A = _' (underscore) mean?
Scala Option - Getting rid of if (opt.isDefined) {}
Does Project Lombok work well with Scala?
How do I create a set of characters in Scala?
sbt: selecting main class for running
Is there a good math/stats library for Scala?
How do I initialize object vals with values known only at runtime?
How do I refresh updated Git dependency artifacts in SBT?
How to get first line from file in Scala
count number of lines in file - Scala
Scala - Dynamic object/class loading
Scala - null (?) as default value for named Int parameter
Filter Map by key set
Object is not a value error in scala
How to get the element index when mapping an array in Scala?
How to check constructor arguments and throw an exception or make an assertion in a default constructor in Scala?
Immutable Scala Map implementation that preserves insertion order
Can I mark a function as deprecated in Scala?
How to save and reuse Scala utility code
Should I use Unit or leave out the return type for my scala method?
Skip first N elements in scala iterable
Scala GroupBy preserving insertion order?
Treating an SQL ResultSet like a Scala Stream
How to get the last date of a particular month with JodaTime?
monoid vs monad in Scala
How can I skip tests in an SBT build?
Using colors in Scala Console
Scala's lazy arguments: How do they work?
Common practice how to deal with Integer overflows?
Getting the desugared part of a Scala for/comprehension expression?
Scala: How can I get an escaped representation of a string?
What is the difference between a.ne(null) and a != null in Scala?
Adding .jar's to classpath (Scala)
Scala ~> (tilde greater than) operator
Why do I get a Some instead of a String in Scala
Insertion sort implementation in scala
Suitable GUI framework for Scala?
Scala Nil equivalent for Set
Why is Function[-A1,...,+B] not about allowing any supertypes as parameters?
Scala while(true) type mismatch? Infinite loop in scala?
Read case class object from string in Scala (something like Haskell's "read" typeclass)
Setting up scala with IntelliJ
Scala: Expand List of Tuples into variable-length argument list of Tuples
Using Eithers with Scala "for" syntax
Running out of heap space
Char or String -> Unicode value in Scala?
scala string.split does not work
Ignore DTD specification in scala
Rename and Override equals method in case class
Scala find location of string in a string
Can't access method of companion class from companion object
Concatenate two immutable maps - which elements are preferred?
What's the difference between `::` and `+:` for prepending to a list)?
Are HLists nothing more than a convoluted way of writing tuples?
How can I make A future of future into one future object?
how to expand size of Java stack trace to see bottom of stack? (triggering a stack overflow)
How to turn off parallel execution of tests for multi-project builds?
Generating a frequency map for a string in Scala
Scala getClass.getResource() returning null
Scala and forward references
Why do immutable objects enable functional programming?
How can I use a Scala singleton object in Java?
JGit and finding the Head
case class copy 'method' with superclass
How to wait for Akka actor system to terminate?
In scala, how to turn object's values into Map[String, String]?
Why can a Scala trait extend a class?
How can I idiomatically "remove" a single element from a list in Scala and close the gap?
JavaFX entirely customized windows?
Scala compiler error: "identifier expected but integer literal found". Why?
Abort early in a fold
How to call .map() on a list of pairs in Scala
In Scala, how do I get the *name* of an `object` (not an instance of a class)?
Scala flatten List
Option getOrElse type mismatch error
What is the type of a variable-length argument list in Scala?
How to yield a single element from for loop in scala?
Why are `private val` and `private final val` different?
Scala - URL with Query String Parser and Builder DSL
Why are there two sets of arguments/parenthesis in this Scala method definition?
How to read a text file with mixed encodings in Scala or Java?
How to flatten a nested tuple?
Should x._1,x._2... syntax be avoided?
Akka Kill vs. Stop vs. Poison Pill?
Initializing a 2D (multi-dimensional) array in Scala
Multiline function literal as arguments in Scala
Finding the most frequent/common element in a collection?
Validate email one-liner in Scala
strange error message: bad symbolic reference. A signature in package.class refers to term apache in package org which is not available
Future[Option] in Scala for-comprehensions
scala type mismatch error, GenTraversableOnce[?] required
How to specify SLICK Query sortBy column from runtime parameter?
How to replace a JSON value in Play
Types of objects in Scala's Lists
Private scoping with square brackets (private[...]) in Scala
Scala import multiple packages
Scala Pattern Matching with Sets
How do I format a string with string interpolation in Scala as a fixed width string?
How to disambiguate links to methods in scaladoc?
What is an elegant way to check if a character is an ASCII letter (a-Z) in Scala?
Flatten Scala Try
Convert scala list to Json object
Using Java libraries in Scala
Scala conditional list construction
How does Scala's mutable Map update [map(key) = newValue] syntax work?
scala class constructor parameters
What is Mapped Buffer Pool / Direct Buffer Pool and how to increase their size?
How to implement implicit Json Writes of embedded object in Play Framework 2.x
Where is SCALA_HOME on Ubuntu?
How does type Dynamic work and how to use it?
Scala: what is the purpose of 'override'
How to use IntelliJ with Play Framework and Scala
Zip two HashMaps(or dictionaries)
Is gzip format supported in Spark?
Scala - Two Lists to Tuple List
scala - uninitialized variable declaration
Future with Timeout in Scala
How to call main method of a Scala program from the main method of a java program?
What's the best way to extract a value from a scala case class?
sbt clear screen command
ClassNotFoundException:scala.PreDef$ issue
Noise free JSON format for sealed traits with Play 2.2 library
Scala's naming convention for traits
Idiomatic way of treating Option[Boolean]
Scala: Remove none elements from map and flatten
How can I read a CSV file and put its content in a Map in Scala?
Is there a Scala equivalent to Python's list comprehension?
Run multiple futures in parallel, return default value on timeout
How can I (best) convert an Option into a Try?
Scala: Why is it necessary to assign values to a var/val during declaration
Different types in Map Scala
Unit test logger messages using specs2 + scalalogging
Scala return statements in anonymous functions
how to read properties file in scala
Scala equivalent of Java's Number
Map the Exception of a failed Future