title: How to sort dates in a List
body: <p>How can i sort the dates inside the list?</p>
  
  <p>I have read that this can be achieved by using TreeMap, as it is a sorted and navigable map that organizes elements in a self-balancing binary tree. but its also expensive. </p>
  
  <p>My question is - What is the BEST and EFFICIENT way to achieve the result?</p>