Using colors in Scala Console

Question

I was hoping that would be as straight forward as

Console.out.println( "Test " + Console.RED + " RED " + Console.RESET )

but nothing happens, instead I see the control characters (e.g. "\033[31m"). I tried both from within sbt (sbt run) and normal IDEA run configuration run...

Answer 1

It works if your console supports color. I just tried it on a linux system via putty and got the expected result.

Edit: If you're looking to do this via windows you can use Ansicon to provide coloring in your standard command prompt.

Answer 2

Yup, the above works just fine. Also I've found that it's pretty neat to wrap those up as methods ".red" on String, like in this library https://github.com/ktoso/scala-rainbow

Lots of Ruby gems out there that do this, but not so much for Scala yet... :-)

Answer 3

from Scala Standard Library:

import scala.io.AnsiColor._
println(s"${REVERSED}${BOLD}My name ist ${GREEN}Green!${RESET} default font")

works in IntelliJ console too