title: Why Spring bean is singleton scope?
body: <p>I am working with Hibernet and Spring it's going good..but I have some doubts</p>
  
  <p>1) why spring scope is singleton by default?Is there any reason for that</p>
  
  <p>2) Can I write final varible in Hibernate entity?
    Example :  </p>
  
  <pre><code>@Entity
  public class Emp {
    @Id
    private Long id;
    final private String panNo;
  }
  </code></pre>
  
  <p>Can I write like above </p>
  
  <p>3) static varibles can Searlizable?</p>