t.
 An instance method declared on a plain class or an enum is abstract if declared <code>abstract</code>.
 An instance method declared on an interface is abstract unless declared <code>default</code>.
 An instance method declared on an annotation type is always abstract.
 An instance method declared on a record type is never abstract.</div>
<dl class="notes">
<dt>Returns:</dt>
<dd>whether this method is <code>abstract</code>.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="isFinal()">
<h3>isFi