Hello World Flex Application

 <?xml version="1.0" encoding="utf-8"?>
<mx:application layout="absolute" xmlns:mx="http://www.adobe.com/2006/mxml">
<mx:panel height="200" layout="absolute" title="Hello World Application" width="250" x="140" y="42">
<mx:label fontsize="24" fontweight="bold" text="Hello World" x="22" y="28">
</mx:label>
</mx:panel>
</mx:application>