title: How to Get children of child nodes from Firebase in android?
body: <p><img src="https://i.stack.imgur.com/4aVcp.png" alt="my database ">:</p>
  
  <pre><code>class UserAccountSettings {
      private String user_id;
      private String name ;
      private float rate;
      private String profile_photo;
      private ArrayList&lt;Activity&gt; activities ;
  } 
  </code></pre>
  
  <p>thanks for your help!</p>