What's the difference between ArrayList<Integer> a[]; and ArrayList<Integer> a;? : <p>What is the difference in adding the [] to an ArrayList <code>a</code>, as opposed to initializing like ArrayList <code>b</code>? Is there any purpose for one way or the other?</p>

<pre><code>ArrayList&lt;Integer&gt; a[];
ArrayList&lt;Integer&gt; b;
</code></pre>
