title: How do I go down a binary tree using questions?
body: <p>I'm trying to set up a binary tree to do the following:</p>
  
  <ul>
  <li><p>If I write Y, it will print the left child. If I write N, it will
  print the right child.  </p>
  
  <pre><code>UI.println("Is it true: " + node + "(Y/N)");
  </code></pre></li>
  <li><p>If it is just a leaf node, it will just write the answer.</p>
  
  <pre><code>UI.println(node);
  </code></pre></li>
  </ul>