Android Notepad Exercise 1 tutorial and Menu.FIRST
<p>Apologies if this ends up being a stupid question, but I was just wondering why this is done on step 9 of the Notepad Exercise 1 tutorial (<a href="http://developer.android.com/resources/tutorials/notepad/notepad-ex1.html" rel="nofollow">http://developer.android.com/resources/tutorials/notepad/notepad-ex1.html</a>) ...</p>

<pre><code>public static final int INSERT_ID = Menu.FIRST;
</code></pre>

<p>... and then <code>INSERT_ID</code> is used everywhere, instead of just using <code>Menu.FIRST</code> directly instead everywhere?</p>

<p>I was thinking that I don't want to create any new variables if I don't have to, especially when they are static final already.</p>

<p>Is it expensive to create <code>INSERT_ID</code>?</p>
