Trying to do a simple connect to 7.2.1 DB -- unix

I'm new to JDBC and I'm trying to get a simple connect to the pgsql
database. I get a class error when trying to compile this simple java
program. Could someone either help fix this or send me something that
will connect to my 7.2.1 DB(on mac os x) just to demonstrate how it's
done.

thanks,
Michael