题解 | #翻转单词序列#

public class Solution {
    public String ReverseSentence(String str) {
        if ("".equals(str)) {
            return "";
        }

        String[] s = str.split(" ");
        StringBuilder stringBuilder = new StringBuilder();

        for (int i = s.length - 1; i >= 0; i--) {
            stringBuilder.append(s[i] + " ");
        }

        return stringBuilder.toString().trim();
    }
}