Programming is a very peculiar thing. Peculiar, because if you understand general concepts and ideas in programming, then learning various languages wouldn't be a problem at all (generally speaking, there are some exceptions).
That course you've picked is fine for basics of programming and even though a lot of people like to hate Java, it's a fine language and it'd be easy to start with it. As czardoz recommended, if you'd want to learn python, then learning python the hard way is also great book. I personally prefer that way of learning.
I would take Udacity's CS101 course instead and then the Web Development Course they provide. This will give you a very good foundation for getting started. I have taken both and I highly recommend them.
The language you will use will be Python, but what is important are the fundamentals you will learn in these courses. You can then apply them to any language and framework you want to work with.
That course you've picked is fine for basics of programming and even though a lot of people like to hate Java, it's a fine language and it'd be easy to start with it. As czardoz recommended, if you'd want to learn python, then learning python the hard way is also great book. I personally prefer that way of learning.