[백준 2741] N찍기

1. for문 사용

import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner in=new Scanner(System.in);
		int N=in.nextInt(); //N을 입력받는다
		for(int i=1;i<=N;i++) {
			System.out.println(i);
		}
		
		
		
	}

}

 

2. while문 사용

import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner in=new Scanner(System.in);
		int N=in.nextInt(); //N을 입력받는다
		int i=1;
		while(i<=N) {
			System.out.println(i);
			i++;
		}	
		
	}

}