题解 | #图片整理#

import java.util.; import java.io.; public class Main{ public static void main(String[] args)throws IOException{ BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); String str = null; while((str = in.readLine()) != null){ char[] ch = str.toCharArray(); Arrays.sort(ch); StringBuilder res = new StringBuilder(); for(int i = 0;i < ch.length;i++){ res.append(ch[i]); } System.out.println(res.toString()); } } }