<ul data-eligibleForWebStory="true"><li>In Java, checking if a String is both not null and not empty can be tricky for beginners as null and empty are different concepts.</li><li>A String reference variable is null if not initialized, and an empty String has zero characters.</li><li>Whitespace may not be considered an empty String in all cases, depending on the situation.</li><li>There are correct ways to test if a String is not null and not empty in Java.</li><li>The article covers these techniques.</li><li>Title: Java, Unix, Tibco RV and FIX Protocol Tutorial.</li></ul>

How to check if String is not null and empty in Java? Example

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