merry christmas tree

public class xmas {

    public static void main(String[] args) {
        int initrow = 3;
        int treeunit = 3;
        int colin = 2;

        int maxcol = initrow + (treeunit - 1) * colin;
        for (int i = 0; i < treeunit; i++) {
            for (int k = 1; k <= initrow + 2 * (i); k++) {
                for (int x = 0; x < maxcol - k; x++) {
                    System.out.print(" ");
                }
                for (int z = 0; z < k; z++) {

                    System.out.print("* ");
                }
                System.out.println("");
            }
        }
        System.out.println("merry christmas");
    }
}