# encoding: utf-8
words = $objectWrappers.wrap($arrays.arrayOf($plugins.loadClass("java.lang.String"), "hello", "world", "kotlin"))
# 从右到左连接所有单词，并添加索引信息
joinedString = words.foldRightIndexed("") { |index, word, acc|
  acc.to_s + index.to_s + "_" + word + " "
}
# 输出：连接后的字符串: 2_kotlin 1_world 0_hello
$console.log("连接后的字符串: ", joinedString)