[Programmers] Lv.0 | 뒤집힌 문자열 | Java

문제

https://school.programmers.co.kr/learn/courses/30/lessons/120822

 

풀이

class Solution {
    public String solution(String my_string) {
         return new StringBuilder(my_string).reverse().toString();
    }
}

class Solution {
    public String solution(String my_string) {
        StringBuilder answer = new StringBuilder();

        for (int i = my_string.length() - 1; i >= 0; i--) {
            answer.append(my_string.charAt(i));
        }

        return answer.toString();
    }
}