题解 | #数字颠倒#
数字颠倒
http://www.nowcoder.com/practice/ae809795fca34687a48b172186e3dafe
采用StringBuffer 的reverse()方法将字符串反转即可。
import java.util.Scanner; public class Main{ public static void main(String[] args){ Scanner sc = new Scanner(System.in); String str=sc.nextLine(); StringBuffer sb = new StringBuffer(str); StringBuffer rs = sb.reverse(); System.out.println(rs); } }