title: Add multiple items to an already initialized arraylist in Java
body: <p>My <code>arraylist</code> might be populated differently based on a user setting, so I've initialized it with</p>
  <pre><code>ArrayList&lt;Integer&gt; arList = new ArrayList&lt;Integer&gt;();
  </code></pre>
  <p>How can I add hundreds of integers without doing it one by one with <code>arList.add(55);</code>?</p>