Java Demo for loading data into DB

Dear Teammates,

I wrote a Java demo for populating tree_desc and tree_main table. In
order to connect to sqlite with Java, you may need to download sqlite
JDBC driver from here:
https://bitbucket.org/xerial/sqlite-jdbc/downloads
You may want to import those jar packages into your project before
playing with sqlite using Java. This demo is only capable to populate
some of the fields in those two tables. I manually load the rest of
columns. In addition, bName field in tree_main table has "Not Null"
constraint, so you may want to remove this constraint before loading
data into that table. (Since we can only load bName manually). Any
comments or suggestions are welcome.

Jeff.