Sadly, you seem to have spent a lot of time and money on subjects you could have taught yourself in a few weeks of light reading.

Java is not computer science. Exception handling is not computer science. "Something so simple and fundamental" yes, but again, completely unrelated to computer science.

Anyone with half a brain can learn a new language via self study. I would be royally pissed if that's what I was taught in college. I'd go back and ask for a refund.