Where to store several dozen records in Java?

Question

Java

Greetings. The following problem arose: it is necessary to save approximately ten objects with the ability to quickly access and update each object. Of course the most obvious way is to use a DBMS. But it seems to me that starting a table to constantly keep 10 rows of records in it is not a very reasonable solution. Another option is to serialize objects and store them in a file, but this method will require writing a decent amount when, which I, as a programmer, absolutely do not want to do. So, who knows how to quickly and easily save objects with the ability to quickly access and modify them? Maybe there are some ready-made solutions for this, well, in fact, do not create a whole table in the database to store 10 rows there.
The Java/Spring program is wrapped in a docker container for Linux.

Answer 1

Thanks to Eugene Aristarhov , I settled on a json file with the help of Jackson, everything is really simple and easy to do.