title: What is this block of code and how does it affect the Hibernate entity?
body: <p>What does the following code do in the class below? </p>
  
  <pre><code>public Employee() {
  }
  </code></pre>
  
  <p>Does it have any effect on the Hibernate entity? If so, what effect?</p>
  
  <pre><code>@Entity
  @Table(name = "employee")
  public class Employee {
      @Id
      @GeneratedValue(strategy = GenerationType.IDENTITY)
      @Column(name = "id")
      private Integer id;
  
      @Column(name = "name")
      private String name;
  
      @Column(name="age")
      private Integer age;
  
      public Employee() {
      }
  
      public Employee(Integer id, String name, Integer age) {
        this.id = id;
        this.name = name;
        this.age = age;
     }
  }
  </code></pre>