/a><a id="add(E)">add</a></h3>
<div class="memberSignature"><span class="modifiers">public</span>&nbsp;<span class="returnType">boolean</span>&nbsp;<span class="memberName">add</span>&#8203;(<span class="arguments"><a href="MostlySingletonSet.html" title="type parameter in MostlySingletonSet">E</a>&nbsp;e)</span></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true#add(E)" title="cl