Enumeration methods
<p>Enumeration interface has method hashMoreElements is used with refrence variable (Enumv), how can they be used
since they are not implemented ?
I meant it is an interface method so how can it be called - Enumv.hasMoreElements() it does not have a implementation .</p>

<pre><code>Vector v = new Vector();
//v contains list of elements - Suppose
Enumeration Enumv = v.elements();
while(Enumv.hasMoreElements()) {
    System.out.println(Enumv.nextElement());
}
</code></pre>

<p>How is this possible?</p>
