Try importing the following:
import java.lang.Runtime;
import java.sql.*;
import oracle.jdbc.driver.*;
You may go two routes.
Route: 1 - You may put your Driver classes in your Oracle lib and set your classpath like this depending upon your Oracle environment.
D:\Oracle\Ora81\jdbc\lib\816classes12.zip;
Route: 2 - You may put your Driver classes in the lib folder of your App Server and set its classpath.
