Call a method of subclass in Java
<p>If I have a base class
    <code>Base thing = null;</code>
of which there is a subclass
    <code>class Subclass extends Base</code>
and I instigate it as 
    <code>thing = new Subclass</code>
how would I call a method that is specifically in Subclass, but not in Base?
ex.
<code>Base</code> has only <code>method()</code>
<code>Subclass</code> has <code>method()</code> and <code>specialMethod()</code>
the method <code>specialMethod()</code> is the one I want to call.</p>
