foreach.scala

val items = List("A", "B", "C")

//method reference
//Output : A,B,C
items.foreach(println)

//Output : A
items.foreach(item => if ("A".equals(item))
              println(item))

//Map and filter
//Output : CX
items.map(s => s + "X")
  .filter(x => x.contains("CX"))
  .foreach(println)