Scala 2.11 in SMC

println("hi")

hi

def filter(xs: List[Int], p: Int => Boolean): List[Int] =
    if (xs.isEmpty) xs
    else if (p(xs.head)) xs.head :: filter(xs.tail, p)
    else filter(xs.tail, p)
def modN(n: Int)(x: Int) = ((x % n) == 0)
val nums = List(1, 2, 3, 4, 5, 6, 7, 8)
println(filter(nums, modN(2)))
println(filter(nums, modN(3)))

List(2, 4, 6, 8)
List(3, 6)

defined function filter
defined function modN
nums: List[Int] = List(1, 2, 3, 4, 5, 6, 7, 8)

def dup[T](x: T, n: Int): List[T] = {
  if (n == 0)
    Nil
  else
    x :: dup(x, n - 1)
}
println(dup[Int](3, 4))
println(dup("three", 3))

List(3, 3, 3, 3)
List(three, three, three)

defined function dup