javac -how it works

[yash Vi]

Hi all,
This is an interview question which one of my friend faced,
Javac-How it works-wot are the conecpts implemented in its development.
Google doesnt return much useful.I come across the page which gives the description and the options(parameters) to be used with it again and again.

Please help

[Stephen Huey]

That's a pretty broad question. It's hard to know whether they were talking about javac in particular or general compiler concepts.

[Jeff Bosch]

There could have been a simpler meaning, too, such as, "Describe javac and how you would use it in the development process."