// 
// Function to sort an array of numbers using bubble sort.
//
def bubbleSort(nums : Array[Int]) {
  for (stopIndex <- nums.size-2 to 1 by -1) {
    println("nums " + nums.mkString(" "))
    for (j <- 0 to stopIndex) {
      if (nums(j+1) < nums(j)) {
        val temp = nums(j)
        nums(j) = nums(j+1)
        nums(j+1) = temp
      }
    }
  }
}