title: Swap elements in LinkedList
body: <p>I want to maintain order of the elements being added in a list. So, I used a <code>LinkedList</code> in Java.</p>
  
  <p>Now I want to be able to swap two elements in the linked list. First of all, I cannot find an <code>elementAt()</code> for <code>LinkedList</code>. Also, there is no way to add element at a specified position.</p>