[백준 Java] 반복문 - 2439번: 별 찍기 - 2

 

 

import java.io.*;

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));
        StringBuilder sb = new StringBuilder();

        int n = Integer.parseInt(br.readLine());

        for (int i = 1; i <= n; i++) {
            for (int j = 1; j <= n - i; j++) {
                sb.append(" ");
            }
            for (int k = 1; k <= i; k++) {
                sb.append("*");
            }
            sb.append("\n");
        }

        bw.write(String.valueOf(sb));
        bw.flush();
        bw.close();
        br.close();
    }
}