I have some experience with Java, but I have mostly worked with PHP, Python, Solidity and Javascript.<p>Now my company has a new project (website) that will be required to be built on Java Spring. They trust I can learn it fast. I have like 2 weeks. How should I do it?
I'm guessing it's a very simple application, given the timescale, so you can probably use Spring Boot to get started and follow a simple tutorial of your choice. The precise details in your case are probably close to what the tutorials offer I'm guessing: a simple calculation or database access behind an HTTP endpoint.