37-Reverse-Words-in-a-String.txt

class Solution {
    public String reverseWords(String s) {

        String[] words = s.trim().split("\\s+");
        StringBuilder result = new StringBuilder();

        for(int i = 0; i < words.length; i++) {

            result.append(words[words.length-1-i]);

            if (i < words.length-1) {
                result.append(" ");
            }
        }
        return result.toString();
    }
}