题解 | 句子逆序

import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
     public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        while (sc.hasNextLine()) {
            String str = sc.nextLine();
           // StringBuffer sb = new StringBuffer();
            String [] arr=str.split(" ");
            for (int i = arr.length-1; i >=0; i--) {
                System.out.print(arr[i]+" ");
            }

        }
    }
}