Is there any way to add properties to a class that is saved using:
ObjectOutputStream oos = new ObjectOutputStream(.....));
I have a number of objects already saved and would like a way to retrieve them into the new version of my object that has additional properties (obviously these will be null until the new version is saved)
You have to provide serialVersionUID field manually and ensure it is always the same no matter what changes are made to the file.
Entering a date in Microsoft Access can be tricky. A typo can cause month and day to be shuffled, entering the day only causes an error, as does entering, say, day 31 in June. This article shows how an inputmask supported by code can help the user a…