How to check element is not null in java
<pre><code>filterItems = null;
filterItems = new ArrayList&lt;SelectItem&gt;();


Iterator&lt;String&gt; it = RefListMap.keySet().iterator();
        while (it.hasNext()) {
            String s = (String) it.next();
            filterItems.add(new SelectItem(s, s));
        }
</code></pre>

<p>Now i am getting filterItems size=1 but that value is null.How to check array element is not equal to null.</p>

<pre><code>if(filterItems != null)
{

 code
}
</code></pre>

<p>but this condition is not working...Please help me.</p>
