北京理工大学面向对象程序设计第四次上机习题答案~-1. Define a class, DATE, including year, month and day and satisfy the demands as below:



　 1.1 Search keywords　tm　in the MSDN or internet to know how to get current date, and see also example on page 382 in the book or 405 in the E-book.



　 1.2 Define a derived class of DATE, BIRTHDAY, to save someone s birthday. The programmer calls the member function AGE to get someone s age.



　 1.3 So we can use like as follows in main:

　　void main()

　　{

　　　　BIRTHDAY Zhang(1988, 4, 15)

　　　　cout << Zhang.AGE() << endl　 // Now Zhang s age is 28

　　}









2. Define multiple classes(at least two classes) to pass data among them.



　 For example：you may define a class, such as InputData，to enter some data.

　　　　　　　　And define a class ,such as OutputData，to print some data.



　 Note:

　 2.1 Define any member data and member functions according to your program



　 2.2 DON T define global variable or object.



　 2.3 Further reflection: How can we deal with