title: ArrayList.trimToSize() method
body: <p>Can I use <a href="http://docs.oracle.com/javase/7/docs/api/java/util/ArrayList.html" rel="nofollow">ArrayList.trimToSize()</a> method in dynamic arrayList ?</p>
  
  <ol>
  <li>If I use it , what will be happened ?</li>
  <li>Can I get any benefits on using this method on dynamic ArrayList.</li>
  <li>In which case, I should use this method.</li>
  </ol>
  
  <p>Thanks in advance.</p>