题解 | #数字颠倒#
数字颠倒
https://www.nowcoder.com/practice/ae809795fca34687a48b172186e3dafe
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 input = new Scanner(System.in); String next = input.next(); StringBuilder stringBuilder = new StringBuilder(next); StringBuilder reverse = stringBuilder.reverse(); System.out.println(reverse.toString()); } }