title: Firebase Database reference in android
body: <p><a href="https://i.stack.imgur.com/Qre4R.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Qre4R.png" alt="enter image description here"></a></p>
  
  <p>My current code is this:</p>
  
  <pre><code>String key = FirebaseDatabase.getInstance().getReference().child("posts").child("???").child("numLikes").toString;
  </code></pre>
  
  <p>How to get numLikes value?</p>