[LeetCode/Java] Reverse Words in a String

-Code

class Solution {
    public String reverseWords(String s) {
        String[] strArr = s.trim().split(" ");
        StringBuilder answer = new StringBuilder();
        for(int i = strArr.length - 1; i >= 0; i--) {
            if (!strArr[i].trim().equals("")) {
                answer.append(strArr[i]);
                if (i != 0) answer.append(" ");
            }
        }

        return answer.toString();
    }
}