Java打印三角形

public class TestDemo {
    public static void main(String[] args) {
        //打印三角形
        for (int i = 1; i <=5; i++) {
            for (int j = 5; j >=i; j--) {
                System.out.print(" ");
            }
            for (int j = 1; j <=i; j++) {
                System.out.print("*");
            }
            for (int j= 1;  j< i; j++) {
                System.out.print("*");
            }
            System.out.println();

        }
    }
}