1 public class reverseWord {
 2 
 3     public static void main(String[] args) {
 4         String s = "hello world ni hao";
 5         System.out.println(s);
 6         String [] str = s.split(" ");
 7 //        System.out.println(str.length);
 8         String s2= "";
 9         for(int i = 0;i<str.length;i++){
10             String con = str[i];//hello
11             char[] cs=con.toCharArray(); //
12             for(int j = cs.length-1;j>=0 ;j--){
13                  s2 = s2+cs[j];
14             }
15             s2 = s2+" ";
16         }
17         System.out.println(s2);
18         
19     }
20 
21 }