 java.util" class="externalLink">Collection</a>&lt;?&gt;&nbsp;c)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor" id="i11">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#retainAll(java.util.Collection)">retainAll</a></span>&#8203;(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util" class="externalLink">Collection</a>&lt;?&gt;