打印三角形

//打印三角形
public class test01 {
    public static void main(String[] args) {
        for (int i = 0; i < 6; i++) {
            for (int j = 6; j >= i; j--) {
                System.out.print(" ");
            }
            for (int j = 0; j <= i; j++) {
                System.out.print("*");
            }
            for (int j = 0; j < i; j++) {
                System.out.print("*");
            }
            System.out.println();
        }
    }
}