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("", lambda index, word, acc: acc + str(index) + "_" + 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)