题解 | #字符串反转#
字符串反转
https://www.nowcoder.com/practice/e45e078701ab4e4cb49393ae30f1bb04
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 scan=new Scanner(System.in); String sb=scan.nextLine(); char[] ch=sb.toCharArray(); StringBuilder result=new StringBuilder(); for(int i=ch.length-1;i>=0;i--){ result.append(ch[i]); } System.out.print(result.toString()); } }