How to populate Java Beans List from the DB ?

Hi,
I have three tables called State,District and College.
Assume, State table has fields statid,statename,statedescr
District table has fields districtId,districtname,districtdescr and stateid
College table has fields collegeid,collegename,collegedescr and districtid
and all ids for the respective tables are primary keys .. and District and College tables have foriegn keys as expected...
I want to send the whole information to the front end... I had designed three beans StateBean,DistrictBean and CollegeBean.. where all the three beans will have the related fiields and respective getter and setter methods like below
StateBean -- stateid,stateName,stateDesc and DistrictBeanList
DistrictBean -- districtid,districtName,districtDesc and CollegeBeanList
CollegeBean -- collegeid,collegeName,collegeDesc
I would like to have the JDBC code (any driver,any DB) so that I need to build one StateBeanList (collection of all the statebeans information) ... (like how to write the query to get the whole information from the DB and populate the same into one list..(Query or queries + resultset operation)
I hope you understand my problem ...
Please let me know if I have to be more clear...
Thanks in Advance,
Vidhya...

Thanks Sachin,
Atleast you understand something of my requirement..
But Actually I want the logic like
if the query is like
select * from State
while(rs.next) {
StateBean object = new StateBean(); // StateBean
object.yourcorrespondingsetter(rs.getString(1));
object.yourcorrespondingsetter(rs.getString(2));
object.yourcorrespondingsetter(rs.getString(3));
object.setDistrictBeanList(districtbeanlistalreadypopulated); // how to populate the list of districtBeans list before ....
listobject.add(object ); // object internally has to have districtBean list, so the district bean list has to be loaded with all the distrct Beans in which every DistrictBean will be loaded with list of CollegeBeans ... Which district belongs to which state and which college belongs which district is all there in the table information ...
Now I want the query or queries to do that .... Can someone help me ?
Please let me know if I have to be more clear...
}

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