[백준] 2438 별 찍기 - 1 (Java)

/*
 * Author : Jeonghun Cho
 * Date : December 2, 2019
 * https://www.acmicpc.net/problem/2438
 */
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{
        // TODO Auto-generated method stub
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
        int starLen = Integer.parseInt(br.readLine());
        for(int i=1;i<=starLen;i++) { // enter
            for(int j=0; j<i; j++) { // star
                bw.write("*");
                bw.flush();
            }
            bw.write("\n");
        }
    }
 
}