(코린이) 문자열 뒤집기

import java.util.*;

class Solution {
    public String solution(String my_string) {
        char[] arr = new char[my_string.length()];
        char[] original = my_string.toCharArray();
        
        for(int i =0; i<my_string.length(); i++){
            arr[my_string.length() -1 - i] = original[i];
        }
        
       String answer = new String(arr);
        return answer;
    }
}