문제풀이 import java.io.BufferedReader; import java.io.InputStreamReader; import java.util.*; interface Main { public static void main(String[] args) throws Exception { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringBuilder sb = new StringBuilder(); StringTokenizer st; String S = br.readLine(); System.out.println(S.length()); } } 입력받은 문자열의 길이를 출력하면 되므로 String.length(..