백준 2438, 2439 별 찍기 자바

# 2438 별 찍기

• 숫자 입력받아 별 찍기

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));

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

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

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

  }
}

 

# 2439 별 찍기

• 숫자 입력받아 별 찍기

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));

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

    for ( int i = 1; i <= num; i++ ) {
      for ( int k = num; k >= 1; k-- ) {
        if ( k <= i ) {
          bw.write("*");     
        } else {
          bw.write(" ");     
        }
        
      }
      bw.write("\n");
    }

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

  }
}