If you had 45 hours to commit to learning Java as a 1st language, not including setting up your environment, how far into your learning could you get?

[Nicolas]

Hello everyone, I have a big question to submit because I can not find the answer elsewhere, if you had 45 hours to commit to learning java as a 1st language, not including setting up your environment, how far into your learning could you get? Please kindly give me an answer please please.