For fun, I'm going to rewrite all of the examples in Scala: 1) Main def main() = println("Hello") 2) Variables: val y = 1 3) Options (nulls are discouraged

For fun, I'm going to rewrite all of the examples in Scala: 1) Main def main() = println("Hello") 2) Variables: val y = 1 3) Options (nulls are discouraged): val name: Option[String] = None 4) Null 2: //If bob is not null, get his age, or get a default age val age = bob.map(_.age).getOrElse(0) 5) Elvis operator Kotlin: val result = nullableVariable?.someMethodCall() ?: fallbackIfNullMethodCall() Scala: val result = option.map(_.someCall()).getOrElse(defaultValue) 6) String interpolation in scala seems to be exactly the same as kotlin: val name = "John" val lastName = "Smith" val text = "My name is: $name $lastName" val otherText = "My name is: ${name.substring(2)}" In addition, you can also have: val longString = s""" |This is line 1 |This is line 2, my name is $name """.stripMargin 7) This shows the same multi-line strings as above, but its unclear if you can have variables in multi-line strings like I showed above in Scala 8) Ternary operator: val text = if (x > 5) "x > 5" else "x <= 5" Some bonus stuff which scala has: 9) Case classes: case class Person(name: String, age: Int) 10) Pattern matching person match { case Person("bob", 13) => println("Matched bob with age 13") case Person("sally", _) => println("Matched sally, age unknown") case Person(name,age) => println(s"Matched unknown person with name $name and age $age") case x:_> println(s"Matched unknown item: $x") } 10) Equality which actually makes sense, i.e val foo = "foo" val bar = "foo" foo == bar //true in scala, no need to foo.equals(bar) val bob = Person("bob", 13) val other = Person("bob", 13) bob == other //true, based on values val list = Seq(bob) list.contains(other) //true, based on values 11) .par collections / way better higher order functions val list = Seq(string1, string2,...) //Do a parallelized search on list to find all strings <= 3 chars in length: val shortStrings = list.par.filter(_.length <= 3).seq 12) Try: val riskyOp = Try( doSomethingRisky() ) riskyOp match { case Success(result) => println(s"Op succeeded with result $result") case Failure(e) => e.printStackTrace } Disclaimer: I wrote all these in the HN textbox, please excuse any typos