[프로그래머스] 문자열 내 마음대로 정렬하기

 

import java.util.*;
class Solution {
    public String[] solution(String[] strings, int n) {
        Comparator<String> stringComparator  = Comparator.comparing(a -> a.charAt(n));
        return Arrays.stream(strings)
                .sorted(stringComparator.thenComparing(Comparator.naturalOrder()))
                .toArray(String[]::new);
    }
}

 

 

 

 

 

https://school.programmers.co.kr/learn/courses/30/lessons/12915