I'm using Intellij and I saw it's pretty easy to add jar files to a project classpath.
I just have to go to File -> Project Structure -> Libraries -> click the '+' button -> choose the jar and that's it.
However, any IDE is a nice and graphic way to present data. Basically, all configurations of a code project are declared in files.
What I want to ask is where is the file that defined the classpath of my project ?