Tree

public class Tree {
    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);
        System.out.println("Enter the no. of treetop rows:");
        int rows = s.nextInt();

        for (int i = 1; i <= rows; i++) {
            for (int space = 0; space < rows - i; space++) {
                System.out.print("  ");
            }
            for (int j = 1; j <= 2 * i - 1; j++) {
                System.out.print("* ");
            }
            System.out.println();
        }

        for (int i = 0; i < 2; i++) {
            for (int space = 0; space < rows - 2; space++) {
                System.out.print("  ");
            }
            for (int j = 0; j < 3; j++) {
                System.out.print("* ");
            }
            System.out.println();
        }
        s.close();
    }
}