(2741) 백준 문제풀이 - N 찍기 / JAVA

● 분석 

    1. BufferedReader와 BufferedWriter를 사용하여 입력하고 출력하자

    2. while 문을 사용하여 반복문 처리 

 

● 풀이

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 N = Integer.parseInt(br.readLine());
		br.close();
        
		int i = 1;
		while(i<= N) {
			bw.write(i+"\n");
			i++;
		}	
		bw.flush();
		bw.close();
	}
}