Question

How to get the first letter of each word in a string with Scala

Answer 1

object Main extends App {
  val s = "scala javascript php c c++ python"
  
  println(s.split(" ").flatMap(_.headOption).mkString)
}


   
/*
           
run:
     
sjpccp

*/

 

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Answer 2

object Main extends App {
  val s = "scala javascript php c c++ python"
  
  println("""\w+""".r.findAllIn(s).map(_.head).mkString)
}


   
/*
           
run:
     
sjpccp

*/

 

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Answer 3

object Main extends App {
  val s = "scala javascript php c c++ python"
  
  println(s.split(" ").map(_.head).mkString)
}


   
/*
           
run:
     
sjpccp

*/

 

70+ SQL courses for beginners and professionals