题解 | #翻转单词序列#

public class Solution {
    public String ReverseSentence(String str) {
        String s[] = str.split(" ");
        StringBuilder sb = new StringBuilder();
        for(int i=s.length-1;i>=0;i--){
            sb.append(s[i]);
            sb.append(" ");
        }
        sb.deleteCharAt(sb.length()-1);
        return sb.toString();
    }
}