title: making elements of an array null
body: <p>are these two the same things?</p>
  
  <pre><code>for(int i=0; i&lt;array.length; i++){
  array[i] = null;
  }
  </code></pre>
  
  <p>and </p>
  
  <pre><code>array = null;
  </code></pre>