The operator || is undefined for the argument type(s) java.lang.String, java.lang.String in Android app
<p>I am trying to fetch database stored values and checking if ANY of the values exist then  a method should be called.However, while checking I am getting this error--> The operator <code>||</code> is undefined for the argument type(s) <code>java.lang.String</code>, java.lang.String</p>

<pre><code>if ((DBAdapter.KEY_AUDIENCE_TARGETING_COUNTRY
    || DBAdapter.KEY_AUDIENCE_TARGETING_WORLD) != null)
{
    populate();
}
</code></pre>
