Question about the volatile keyword
<p>I know that by the <code>volatile</code> keyword,</p>

<pre><code>volatile int k=7; 
</code></pre>

<p>we hint the compiler that the variable can be changed at any time but what about a simple
<code>int k=7</code>? Can we change it at any time because it is not constant? What is different?</p>
