(JAVA) 가운데 글자 가져오기

class Solution {

  public String solution(String s) {

              int sLength = s.length()%2;

    int middle = s.length()/2;

      String answer="";

      if(sLength==0){

          answer += s.substring(middle-1, middle+1);

      }else {

      answer = s.substring(middle,middle+1);

      }

      return answer;

  }

}

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class Solution {
    public String solution(String s){
        return s.substring((s.length()-1) / 2, s.length()/2 + 1);    
    }

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