title: What is import java.util.UUID used for?
body: <pre><code>import java.util.UUID
  public class Person implements Serializable {
  
          private UUID uuid;
  
          public Person() {
              uuid = UUID.fromString("3856c3da-ea56-4717-9f58-85f6c5f560a5");
          }
  
          public UUID getUuid() {
              return uuid;
          }
      }
  </code></pre>