PAT乙级:1009. 说反话 (Java)

import java.util.Scanner;

public class Main {

public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner s=new Scanner(System.in);
String str=s.nextLine();
String[] words=str.split(" ");
for (int i = words.length-1; i >=0; i--) {
if (i!=0) {
System.out.print(words[i]+" ");
}else{
System.out.println(words[i]);
}
}
s.close();
}

}