# encoding: utf-8
numbers = $objectWrappers.wrap($arrays.arrayOf($plugins.loadClass("java.lang.Long"), 1, 2, 3, 4, 5))
# 计算累积索引加权和,累积索引加权和: [0, 1, 5, 14, 30, 55]
numbers.scanIndexed(0) { |index, acc, element| acc + element * (index + 1) }.forEach { |it|
  $console.log(it)
}