JDBC Pagination Oracle get 1000 at a time execute then get next 1000

I'm using this code to get 1000 records at a time. It works fine but how do I stop at the 1st 1000 run my job, then pick up where I left off and get the next set 1001 - 2000, run the next job and so on? Please help I'm kind of stuck.

public class PaginationJDBC {

   public static void main(String arg) {
       for(int i=1; i<=5 ;i++){
              paginationMethod(i);
   }
}

static void paginationMethod(int n){
       Connection con = null;
       PreparedStatement ps = null;
       ResultSet rs = null;                  
       try {
              con = gettingMyConnection;
              ps = con.prepareStatement("select emp.id, emp.name  "
                + "from ( select rownum rn, e.* from EMPLOYEE e) emp "
                + "where rn >=? and rn< =? ");
              ps .setInt(1, (n*1000) -999);
              ps .setInt(2, n*1000);

              rs = prepStmt.executeQuery();
              int rowCount = 0;
              while (rs.next()) {
              ++rowCount;
                    System.out.print(rs.getInt(1)+" ");
                    System.out.println(rs.getString(2));
              if(rowCount >= 1000-4) {
               system.out.printlin("total records" + rowCount);
              //I would like to run a job here, returns the 1st 1000
               return;
              } 
              if(rowCount >= 1001) {
               **// this is where I would do the next job between 1001 and 2000 and so on, but I'm stuck**
              }

       } catch (ClassNotFoundException e) {
              e.printStackTrace();
       } catch (SQLException e) {
              e.printStackTrace();
       }
       finally{
              try {
                    if(rs!=null) rs.close(); //close resultSet
                    if(ps !=null) ps .close(); //close PreparedStatement
                    if(con!=null) con.close(); // close connection
              } catch (SQLException e) {
                    e.printStackTrace();
              }
       }

}

}

Use your application to take note of where you got up to, eg, lets say I'm showing records for today, 20 rows at a time. I might write:

Page 1

select * 
from T 
where date_col = trunc(sysdate) 
order by id desc
fetch first 20 rows only

I fetch ID=100 down to 80...I take note of the 80. My next query will then be

select * 
from T 
where date_col = trunc(sysdate) 
AND ID<80  <<==== additional predicate
order by id desc
fetch first 20 rows only

and my next query would be

select * 
from T 
where date_col = trunc(sysdate) 
AND ID<60
order by id desc
fetch first 20 rows only

and so forth.