[Programmers] Lv1: 문자열 내림차순으로 배치하기(12917)

문제

- 링크: https://school.programmers.co.kr/learn/courses/30/lessons/12917

 

풀이

import java.util.*;

class Solution {
    public String solution(String s) {
        String answer = "";
        String[] strArray = s.split("");
        
        Arrays.sort(strArray, Collections.reverseOrder());
        
        for (int i = 0; i < s.length(); ++i) {
            answer += strArray[i];
        }
        
        return answer;
    }
}