java 实验

(1)实现一个整数N的阶乘运算。N为固定常数。

(2)在屏幕上按如下格式输出乘法口诀表：

1X1=1

1X2=2 2X2=4

1X3=3 2X3=6 3X3=9

…

其中，每行的多个乘法公式之间用‘\t’分割

-java test (1) to achieve an integer N factorial operation. N is a fixed constant. (2) in the following format on the screen output of the multiplication formulas table: 1X1 = 1 1X2 = 2 2X2 = 4 1X3 = 3 2X3 = 6 3X3 = 9 ... in which each row between multiple multiplication formula with ' \ t'　split