This programm allows you to input the information about man like: Петров Дмитрий Андреевич 28.04.2003
The programm will print next information: Петров Д.А. М 19 лет
This programm work with class Calendar and can update itself in real life, thanks to GrigorianCalendar. Also, it has handle most exceptions, for example, incorrect date of birthday, incorrect full name and so on.
P.S: This programm has a simple user interface.