System.out.println("1 + 1 = " + calculator.add(1, 1));
System.out.println("1 - 1 = " + calculator.subtract(1, 1));
// now let's use the customer bean to ensure that the entity manager is bound
// to jndi
CustomerManager customerManager = (CustomerManager) ctx.lookup("CustomerManager");
long id = customerManager.createCustomer("Jaikiran");
System.out.println("Created customer with id = " + id);
Customer customer = customerManager.getCustomer(id);
System.out.println("Customer's name is " + customer.getName());
}