public void add(int a, int... b) { 
<p>Could someone show me a practical a use of the ... array method delcaration?
Is it just a way to declare an optional parameter instead of passing null value?</p>

<pre><code>public void add(int a, int... b) {
 // do something
}

add(1);
add(1,2,3);
</code></pre>
