validate long variable if null
<p>I am having difficultie while validating a long variable if it is null.
The Code which I am using is :</p>

<pre><code>long late_in= latein_hours.getTime();
</code></pre>

<p>It will show an error that java null pointer exception. So how can I validate if it is null then make it equal to zero.</p>

<p>Thanks</p>
