题解 | #字符串反转#
字符串反转
https://www.nowcoder.com/practice/e45e078701ab4e4cb49393ae30f1bb04
import java.util.*; // 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) { // HJ12 字符串反转 Scanner scanner = new Scanner(System.in); String str = scanner.nextLine(); if (str.length() <= 1000) { char[] chars = str.toCharArray(); for (int i = chars.length; i > 0; i--) { System.out.print(chars[i-1]); } }else { System.out.println("输入字符串必须在0~1000范围内"); } } }