这个是用系统时间产生随机数应用的一个小程序，用到了J2ME底层绘图机制。功能：在你输入4个选项后，系统自动筛选出一个结果。就像考试时a,b,c,d四个选项瞎蒙出来一个-This is the system time with the application of random numbers generated in a small procedure, use the bottom of the drawing mechanism of the J2ME. Function: you inpu

You can achieve data classification and regression pattern recognition, It draws on principal component analysis algorithm (PCA), Monte Carlo simulation method of calculating the American option price and basic descr iption.