打印三角形

package com.zx.scanner;  /**  打印n层三角形  **/ public class Demo05 {      public static void main(String[] args) {         //层数         int n = 5;          for (int i = 1; i <= n; i++) {              //填充:5 4 3 2 1个空格             for (int j = n; j >= i; j--) {                 System.out.print( );             }              //填充:1 2 3 4 5个*             for (int j = 1; j <= i; j++) {                 System.out.print(*);             }              //填充:0 1 2 3 4个*             for (int j = 1; j < i; j++) {                 System.out.print(*);             }             System.out.println();         }     } }

结果如下: