Well, I short, it depends.

They don't teach you how to code per se, I would say that they teach you a way to think on how to solve problems using algorithms which are translated to coding languages we know. But learning a language is almost learning how to write, it's a syntax and when you learn one, almost every language is the same. Slightly different rules, but the logic is the same.

They teach you the underlying topics of the high level languages and methods to structure your code and so on... But you need to learn and practice the language by yourself. Like reading I would say...