title: Android studio: App crashing on Yahoo Weather API
body: <p>App crashes on this instruction: </p>
  
  <pre><code>String endpoint = String.format("https://query.yahooapis.com/v1/public/yql?q=%s&amp;format=json", Uri.encode(YQL));
  </code></pre>
  
  <p>anything wrong with it?</p>