public class ConnectionDatabase {
   protected  List<Customer> warehouses = new ArrayList<Customer>();
   public static Connection connectDB() {
    Connection connect = null;
    try {
        String driver = "oracle.jdbc.driver.OracleDriver";
        Class.forName(driver);
         connect =

     DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe",
        "asd","pass");
    }
    catch(Exception e) {
        System.out.println(e);
    }
    return connect;
}