Convert list in Scala to a formatted string

Question

How can I convert the List(1,2,3) in Scala to a formatted string like "1/2/3" with the List methods?

Answer 1

Have a look at mkString. In short:

Displays all elements of this list in a string using a separator string (In your case "/")

scala> List(1,2,3).mkString("/") res0: String = 1/2/3  scala> List(1,2,3).mkString res1: String = 123  // def mkString(start: String,sep: String,end: String): String  scala> List(1,2,3).mkString("@", "/", "@") res2: String = @1/2/3@