title: Where to use StringBuffer/StringBuilder than String
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/2971315/string-stringbuffer-and-stringbuilder">String, StringBuffer, and StringBuilder</a>  </p>
  </blockquote>
  
  
  
  <p>We know that <code>String</code> are immutable where <code>StringBuffer</code>/<code>StringBuilder</code> are mutable. But sometimes we get confused what to use in our code.. the <strong>String</strong> or <strong>StringBuffer/StringBuilder</strong> ?? Practically in our maximum code/quick code we use to prefer <code>String</code> than <code>StringBuffer</code>/<code>StringBuilder</code>.</p>
  
  <p>This question is to solve the confusion, if you have any idea &amp; proper reason for that, then please give a reply.</p>