Is it possible to receive data from individual Vkontakte groups?

Question

Java

I want to write an application with which the user could receive articles from individual VK groups.
Can I do without my own server?
Is it possible to make a user without logging in VK able to read the data?
Forgive me if the questions are stupid, I never seriously wanted to write an application before.

Answer 1

"Is it possible to make it so that the user can read the data without logging in to VK?"
It is possible, for this you will have to create an eternal token and request data through it, although this will not be safe.