题解 | 单组_字符串
单组_字符串
https://www.nowcoder.com/practice/e3a57b2ff6de4aefb82af98925df544e
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 in = new Scanner(System.in); // 注意 hasNext 和 hasNextLine 的区别 int n = in.nextInt(); String s = in.next(); String reversed = new StringBuilder(s).reverse().toString(); System.out.println(reversed); } }