백준 10808 알파벳 개수 (자바 Java)

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String input = br.readLine();

        int[] alphabetCount = new int[26];

        for (int i = 0; i < input.length(); i++) {
            char ch = input.charAt(i);
            alphabetCount[ch - 'a']++;
        }

        for (int count : alphabetCount) {
            System.out.print(count + " ");
        }
    }
}