题解 | #单词倒排#

public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String[] splitStr = scanner.nextLine().split("[^a-zA-Z]"); //非字母都用作分隔符
        StringBuilder str = new StringBuilder();
        for (int i = splitStr.length - 1; i >= 0; i--) {
            str.append(splitStr[i]);
            if(i != 0) {
                str.append(" ");
            }
        }
        System.out.println(str.toString());
    }