백준 2438번 자바 - 별 찍기1

import java.io.*;
import java.util.Scanner;
import java.util.StringTokenizer;

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());

        for (int i = 1; i <= n; i++) {


            for (int j = 1; j <=i; j++) {
                bw.write("*"      );
            }
            bw.write("\n");

        }
        br.close();

        bw.flush();
        bw.close();



    }
}