How to get first line from file in Scala

Question

I'd like to get just the first line from a CSV file in Scala, how would I go about doing that without using getLine(0) (it's deprecated)?

Answer 1

If you don't care about releasing the file resource after using it, the following is a very convienient way:

Source.fromFile("myfile.csv").getLines.next()

Answer 2

If you want to close the file, and you want to get an empty collection rather than throw an error if the file is actually empty, then

val myLine = {
  val src = Source.fromFile("myfile.csv")
  val line = src.getLines.take(1).toList
  src.close
  line
}

is about the shortest way you can do it if you restrict yourself to the standard library.