i found that when working with csv files and java, vectors come in very
handy, i find them much more dynamic than arrays, and the native
methods you can perform on vectors are quite handy.  sorting is a
breeze, and comparisons on values are just as simple.

i usually pull any resultsets into vectors, perform any operations i
need to do on the data, and write it all back to a database or csv
file..... whatever suits best.

just build a java class that contains all your methods to translate
from resultset to vector, and from vector back to resultset, or
straight to csv string :P

i find it simplifies things to have 3 classes, keeping your code neat,
and reusable....

1. one class handles all db connectivity,

2. the other handles the compilations of a prepared sql statements, and
retrieving resultsets to vector or arrays,

3. and the 3rd handles your gui, input methods, and parsing of values
to your methods in your #2 class.

But thats just me... try out vectors.