1     public static void main(String[] args) 2     { 3         for(int c=0;c<4;c++) // 4         { 5           for (int i = 1; i < 4; i++)  6           { 7               for (int j = 4; j >= i; j--)  8               { 9                   System.out.print(" ");10               }11               for (int k = 1; k <= 2 * i - 1; k++) 12               {13                   System.out.print("*");14               }15               System.out.println();16           }17         }18      }

打印结果如图所示：