title: Firebase Android get value of child based on key
body: <p>I have the following database structure in Firebase:</p>
  
  <p><img src="https://i.stack.imgur.com/erJgo.png" alt="image"> </p>
  
  <p>I would like to retrieve the value for the key "name" (which in this case would be "b"). I have knowledge of the key <code>-K_bWdgeYxYrdmzr67bJ</code>. This doesn't need to have a listener. How would I do this? </p>
  
  <p>Thank you very much</p>