For instance:

cars
---------------
ID
Name

drivers
---------------
ID
Name
CarID


entity fields:

Car
---------------
  @Id
  @GeneratedValue(strategy = GenerationType.IDENTITY)
  @Basic(optional = false)
  @Column(name = "ID", nullable = false)
  private Integer id;

  @Basic(optional = false)
  @Column(name = "Name", nullable = false, length = 45)
  private String name;

  @OneToMany(cascade = CascadeType.ALL, mappedBy = "carID")
  private List<Driver> driverList;


Driver
---------------
  @Id
  @GeneratedValue(strategy = GenerationType.IDENTITY)
  @Basic(optional = false)
  @Column(name = "ID", nullable = false)
  private Integer id;

  @Basic(optional = false)
  @Column(name = "Name", nullable = false, length = 45)
  private String name;

  @JoinColumn(name = "CarID", referencedColumnName = "ID", nullable = false)
  @ManyToOne(optional = false)
  private Car carID;


private Car carID should be "car"
and if there were multiple many to one relations in the entity. it should be:
car, car1, car2 ....

Driver d = new Driver("Michael Schumacher");
d.car = new Car("Ferrari");