Question

I would like to know how to save an ArrayList of abstract Objects to a file.
So far I only save primitive types or ArrayLists of primitive types by converting them to a comma separated String and storing this with a buffered reader.

But now I have got an ArrayList of Game Elements, which have really different properties and Constructors, so my normal approach won’t work. There has to be something nicer than storing each to a file or each type of Object to a file or add plenty of seperator levels.

How do I do this in a nice way?

Answer 1

Have a look at Serialization, there are plenty of tutorials out there so I am not going to post any code:

http://www.tutorialspoint.com/java/java_serialization.htm