编写一身份证信息提取类IDinfo,内有方法getGender(),getBirthday()等，分别用于提取18位身份证号码中的个人性别、出生年月等信息，并将该类置于包cn.edu.zhku.cs1中，设计主程序类用于用户输入身份证号码，并输出个人性别、出生年月等信息，并将该主程序类置于包cn.edu.zhku.cs2中。-Preparation of a ID card information extraction class IDinfo, there are ways getGender (), getBirthday (), etc., were used to extract 18 ID number of the individual gender, date of birth and other information, and to put such packages cn. edu.zhku.cs1, the design of the main program class for the user to enter identity card number, and outputs the individual gender, date of birth and other information, and will be placed in the main program package cn.edu.zhku.cs2 in class.