(JAVA) 문자열을 정수로 바꾸기

class Solution {
  public int solution(String s) {
      return Integer.parseInt(s);
  }
}

---------------------------------

public class StrToInt {
    public int getStrToInt(String str) {
            boolean Sign = true;
            int result = 0;

      for (int i = 0; i < str.length(); i++) {
                char ch = str.charAt(i);
                if (ch == '-')
                    Sign = false;
                else if(ch !='+')
                    result = result * 10 + (ch - '0');
            }
            return Sign?1:-1 * result;
    }

출처: www.programmers.co.kr