What to write a program for a term paper?

Question

Java

Good evening.
The university asked a term paper on the topic "Cross-Platform Application Development".
The essence of the work is the implementation of a Java program that works on several platforms.
The manager told me to think about what kind of program I would write. I would like to consult the community about what can be done that is useful and not very complicated, without inventing a bicycle.
Java knowledge is average

Answer 1

projects

Answer 2

Do some bookkeeping so that there is synchronization with devices

Answer 3

Make the scanner available on the network machines. You will get a simple client-server application.

Answer 4

Some kind of intra-university messenger, with file storage and the possibility of sending them ... So that it would be convenient to send announcements to students through it, post the results of their assessments, conduct surveys, post educational materials. I know there are dropbox and VK groups, but it's more solid)

Answer 5

Try to write monitoring of computing resources ala Zabbix. At one time I wrote this as a thesis.

Answer 6

A text game can be useful in terms of gaining experience, and writing it is not so difficult. Or some kind of cellular automaton.