EntityManagerFactory entityManagerFactory = Persistence.createEntityManagerFactory("persistence");
        EntityManager entityManager = entityManagerFactory.createEntityManager();
 
        entityManager.getTransaction().begin();
        Employee employee = new Employee();
        employee.setName("Sanjay");
 
                // Save Entity
        entityManager.persist(employee);
        entityManager.getTransaction().commit();
        System.out.println("Generated Employee ID = " + employee.getEmployeeId());