题解 | #华为no.11 数字颠倒#

将输入进来的字符串逆序加到stringbuilder中，然后再tostring输出即可

public class Main {
    public static void main(String[] args) {
        //逆序输出
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
        StringBuilder sb = new StringBuilder();
        for (int i = s.length()-1; i >=0 ; i--) {
            sb.append(s.charAt(i));
        }
        System.out.println(sb.toString());
    }
}