2741:N 찍기

문제

자연수 N이 주어졌을 때, 1부터 N까지 한 줄에 하나씩 출력하는 프로그램을 작성하시오.

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.StringTokenizer;
//ctrl+shift+o
public class Main {
 
       public static void main(String[] args) throws IOException {
       //Scanner sc = new Scanner(System.in);
       BufferedReader bf = new BufferedReader(new InputStreamReader(System.in)); 
       BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
       StringTokenizer st;
       int cnt = Integer.parseInt(bf.readLine());
       
       for(int i=1;i<=cnt;i++) {
          // st = new StringTokenizer(bf.readLine());
          // bw.write((Integer.parseInt(st.nextToken())+Integer.parseInt(st.nextToken()))+"\n");
         System.out.println(i);  
       }
       
       //bw.close();                  
                 
     }
}

https://www.acmicpc.net/problem/2741