title: What's the difference between these 2 ifs?
body: <pre><code>if(loadFactor != null &amp;&amp; !(trialExists(loadFactor))
  </code></pre>
  
  <p>and </p>
  
  <pre><code>if(!(loadFactor == null || trialExists(loadFactor))
  </code></pre>
  
  <p>I was asked in a review to make 1st if changed to 2nd. How does it make any difference.</p>