package struct; public class TestDemo { public static void main(String[] args) { 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(); } } }