[SoftUni Java] ExamPreparation 03.SandGlass

import java.util.Scanner;
public class Program {

    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        int n = input.nextInt();

        for (int i = 0; i <= n/2; i++) {
            String dots = new String(new char[i]).replace("\0", ".");
            String stars = new String(new char[n - 2 * i]).replace("\0", "*");
            System.out.printf("%s%s%s", dots, stars, dots);
            System.out.println();
        }

        for (int i = n/2 - 1; i >= 0; i--) {
            String dots = new String(new char[i]).replace("\0", ".");
            String stars = new String(new char[n - 2 * i]).replace("\0", "*");
            System.out.printf("%s%s%s", dots, stars, dots);
            System.out.println();
        }
    }

}