Contest: scala-lang.org frontpage code snippet

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I think the code snippet should be simple and don’t need to show too many features in Scala.
I find some good code examples in old Scala home page.

Some code snippets (came from here and there and modified) I like:

1.

object HelloWorld {
  def main(args: Array[String]) {
    println("Hello, world!")
  }
}

object Fib {
  def fibonacci(n: Int): Int = n match {
    case 0 | 1 => n
    case _ => fibonacci(n - 1) + fibonacci(n - 2)
  }

  def main(args: Array[String]) {
    val numbers = List(4, 2)
    for (n <- numbers) println(fibonacci(n))
  }
}

3.

object Sort {
  def quickSort(list: List[Int]): List[Int] = list match {
    case Nil => Nil
    case head :: tail =>
      val (low, high) = tail.partition(_ < head)
      quickSort(low) ::: head :: quickSort(high)
  }

  def main(args: Array[String]) {
    val numbers = List(6, 2, 8, 5, 1)
    println(quickSort(numbers))
  }
}

The third one looks good, but I still think it is a bit complex. I try to use if/else instead of pattern match (Nil is odd for beginners) but still like the latter.

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