<p>I'm not sure if the term's actually "Array Addition". </p>

<p>I'm trying to understand what does the following line do:</p>

<pre><code>int var[2 + 1] = {2, 1};
</code></pre>

<p>How is that different from <code>int var[3]</code>?</p>

<p>I've been using Java for several years, so I'd appreciate if explained using Java-friendly words.</p>

<p>Edit: Thousands of thanks to everyone who helped me out, Occam's Razor applies here. </p>

How is that different from
```
int var[3]
```
?
In no way that I can see.