[코테/0레벨] 문자열 뒤집기

 

 

 

 

 

ㅁ 내 풀이

 

class Solution {
    public String solution(String my_string) {
        
        String answer = "";
        
        for(int i=my_string.length(); i>0; i--){
            answer += my_string.charAt(i-1);
        }
        
        return answer;
        
    }
}

 

 

 

ㅁ 다른 풀이

 

import java.util.*;

class Solution {
    public String solution(String my_string) {
        StringBuilder sb = new StringBuilder();
        sb.append(my_string);
        sb.reverse();

        return sb.toString();
    }
}

 

 

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