bintang3

import javax.swing.*;
public class tugas_bintang2 {
    public static void main (String[] args){
        int baris;
        baris=Integer.valueOf(JOptionPane.showInputDialog("Masukan banyak Bintang ?"));
                         for (int i=1;i<=baris;i++) {
                            for (int j=1;j<=baris;j++){
                                if (i<=j)
                                    System.out.print("*");
                                else
                                    System.out.print(" ");

                            }
                            System.out.println();
                        }
    }
}