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 in = new Scanner(System.in); Integer num = in.nextInt(); String str = num.toString(); String result = ""; for(int i = 0;i<str.length();i++){ result = str.charAt(i)+result; } System.out.println(result); } }