title: Depicting friend relationship between classes in UML
body: <p>I have two classes A and B where B is a friend of A.</p>
  
  <p>How to show this in UML ?</p>
  
  <p>Is it ok to show it using dependency relation and then adding a comment on the relation like below ?</p>
  
  <pre><code>  &lt;&lt;Friend&gt;&gt;
  </code></pre>
  
  <p>B  ------------------>  A</p>