title: add data to particular file by using outputstream
body: <pre><code>String data="this we want append in that file";
  byte[] getbyte = data.getBytes();
  outputstream.write(getbyte);
  outputstream.flush();
  </code></pre>
  
  <p>by using these code i m trying to write data in particlar file but data is not get added it that file </p>