Lesson 3 - for loops

Scala's for loops are foreach-style iterations over a range.

object ForLoop {
  def main(args: Array[String]) {
    for (a <- 1 to 10 by 2) {
      print(a + " ")
    }
    println
    var elements = Array("red", "green", "blue")
    for (b <- elements) {
      print(b + " ")
    }
    println
  }
}

the above produces

1 3 5 7 9 
red green blue 

Read more on Scala for loops here.