[백준] - 단계별로 풀어보기(반복문) 2742

백준 2742번

기찍 N

문제 출처 https://www.acmicpc.net/problem/2742

내가 작성한 코드

import java.io.IOException;
import java.io.BufferedReader;
import java.io.BufferedWriter;
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 n = Integer.parseInt(br.readLine()); //int형으로 변환
		for(int i=n; i>0; i--) {
			bw.write(i +"\n");
		}
		bw.flush();
		bw.close();
	}
}

BufferedReader / BufferedWriter 설명 참고