Calendar check. Create an application that allows the user to select a month and enter a day number, the application should output whether the day is a valid day of that month
e.g. [blue text has been entered from keyboard]
Enter a month [1..12]: 2
Enter a day [1..31]: 30
30 is not valid for February
Hints: You do not necessarily need an enumerated set for this particular problem but it may help. You will require a switch statement.
Google "days of the month", leap years I'll leave to your discretion.