title: Disadvantages of Hashtable
body: <ol>
  <li>Can Hashtable have any number of records in it?</li>
  <li>Is it efficient to use Hashtable in case we have more records (eg. Some 10000 records)?</li>
  </ol>
  
  <p>And are there any disadvantages of using Hashtable in terms of Efficiency .?</p>
  
  <p>Thanks.</p>