Task for collecting code metrics

[Johannes Brodwall]

Hi,

Does any task exists for automatically collecting code metrics?
Some metrics that would be interesting are number of classes, fan-
in/fan-out for packages, classes and methods, number of lines per 
method, number of methods per class, number of lines per class, etc.


Collecting these numbers by hand is very tedious and probably not 
cost-efficient.  Collecting it as a part of a build process could 
be fun, though.

Any pointers would be appreciated.

Sincerely,
~ j'hannes