operations on a file by creating a
 backup file until a write has successfully completed.&nbsp;</td>
          </tr>
        <tr class="alt-color api apilevel-8" >
              <td class="jd-linkcol"><a href="../../../reference/android/util/Base64.html">Base64</a></td>
              <td class="jd-descrcol" width="100%">Utilities for encoding and decoding the Base64 representation of
 binary data.&nbsp;</td>
          </tr>
        <tr class=" api apilevel-8" >
              <td class="jd-linkcol"><a href="