题解 | #数字颠倒#
数字颠倒
https://www.nowcoder.com/practice/ae809795fca34687a48b172186e3dafe
不知道为什么,做题会提前给你定义好这么多东西(只有分割线里面的是自己写的。。。
import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.BufferedReader; public class Main { public static void main(String[] args) throws IOException { BufferedReader br=new BufferedReader(new InputStreamReader(System.in)); String str=br.readLine(); // ========================================================= StringBuffer sb = new StringBuffer(str); System.out.println(sb.reverse().toString()); // ========================================================= } }