[Biojava-l] Annotations question

[McSweeny, Andrew J]

Hello,

I am interested in using BioJava to determine which features are located where on the assembled chromosome 21 (chr21.fa) from the UCSC genome browser website.

An example of something I would like to do is to pick a position at random (1-48,129,895) and then determine whether there are any exons or introns on the plus or minus strand.

What classes do I need to be familiar with to do this?

-Andrew