I found that it is possible to use Source.fromFile(“hello.txt”).readLines() to read a file in Scala but I am not able to find a similar API to write a collection to a file.
There are certainly a lot of ways to do it. Saving out a json file for instance. If you want just a csv file maybe take a look at the Kantan library: https://nrinaudo.github.io/kantan.csv/tut/serialising_collections.html
-Brett
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Hi,
I’d probably use Java NIO. Running this code in the Scala REPL…
import java.nio.file.{Paths,Files}
import java.nio.charset.StandardCharsets
import collection.JavaConverters._
val lines = "Line 1" :: "Line 2" :: Nil
val file = Paths.get("lines.txt")
Files.write(file, lines.asJava, StandardCharsets.UTF_8)
…produces lines.txt
:
Line 1
Line 2
Dan
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I’d recommend using better-files, which will hopefully be part of the upcoming Scala Platform:
import better.files._
File("hello.txt").appendLines(List("Hello", "World"))
and to read a file:
val lines = File("hello.txt").lines
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