Compiling a Java Project using Compiler API

Compiling a Java Project using Compiler API

I'm trying to compile a whole java project dynamically using the Compiler
API. My initial thoughts of achieving this is to first know how to compile
it in one-line using command line, then apply the same
principle/parameters on the compiler object. Problem is, I never did, err,
compiled using CLI. (Disadvantage of using an IDE? Haha)
So, am I on the right track? Moreover, can the project compilation
achieved in one line execution? I'm having a hard time figuring this out
because of the fact that it's a project, it contains packages galore.