백준 2577 / 자바

www.acmicpc.net/problem/2577

2577번: 숫자의 개수

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



public class Main {
   
	public static void main(String[] args) throws IOException {
		
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
		
		int Count[] = new int[10];
		int multiple = 1;
		
		for(int i=0;i<3;i++) {
			multiple*=Integer.parseInt(br.readLine());	
		}
		
		String number = String.valueOf(multiple);
		char num[] = number.toCharArray();
		
		for(int i=0;i<num.length;i++) {
			int index = Character.getNumericValue(num[i]);
			Count[index]++;
		}
		
		for(int i=0;i<Count.length;i++) {
			bw.append(Integer.toString(Count[i])).append("\n");
		}
	
		bw.flush();
		bw.close();
}
}

Character.getNumericValue() 새로 알게됨!