public class Conexion_BD {

    Connection connection = null;

    public void conectar() throws ClassNotFoundException {

        try {
             connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/archivo", "root", "");

        } catch (SQLException e) {
             System.out.println("La Conexion a la Base de datos fallo.");
             e.printStackTrace();
             return;
        }

    }
}