题解 | #图片整理#

JAVA 基本操作

import java.util.*;
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        while(in.hasNext()) {
            String str = in.nextLine();
            char[] s = str.toCharArray();
            Arrays.sort(s);
            System.out.println(s);
        }
        in.close();
    }
}
//it is convenient to use Java