Java is not "sexy" and too difficult to learn compared to the dynamic languages.
My advice would be to instead focus on the corporate market (depending on how good you are with Java yourself).
For example, I am developer X working at bank FF. We're old school, so we use tech that was big 10 years ago. Our systems are all Java. I got my CS degree and have tried to keep up with Java updates itself, but I've probably missed a couple of things over the years. My company approaches ktbyte.com to come do some instruction lessons for Java 7/8. I'm getting the lessons for free and when I'm done learning, the knowledge I have will enable me to obtain a Java certificate from Oracle/Sun (you'll need to connect with them here).
Anyway, that is what I might consider, instead of the crowded "teach anyone to code" market. You could easily negotiate good terms with Oracle and because it'll only be you in the start, your main expense would be travel.
We started with Java because our middle/high school students do algorithmic competitions, and the choice is either Java or C++. At least Java is also used on the AP Computer Science exam.
What you say about training is interesting though. I suppose I would need to start contacting companies to reach out to whoever does training. Do you have any leads here?
My advice would be to instead focus on the corporate market (depending on how good you are with Java yourself).
For example, I am developer X working at bank FF. We're old school, so we use tech that was big 10 years ago. Our systems are all Java. I got my CS degree and have tried to keep up with Java updates itself, but I've probably missed a couple of things over the years. My company approaches ktbyte.com to come do some instruction lessons for Java 7/8. I'm getting the lessons for free and when I'm done learning, the knowledge I have will enable me to obtain a Java certificate from Oracle/Sun (you'll need to connect with them here).
Anyway, that is what I might consider, instead of the crowded "teach anyone to code" market. You could easily negotiate good terms with Oracle and because it'll only be you in the start, your main expense would be travel.
No need for venture money there.