Below is Flex code sample to communicate to a Java servlet in the back-end using HTTP Service. <?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute"> <mx:Script> <![CDATA[ import mx.rpc.events.ResultEvent; import mx.rpc.events.FaultEvent; import mx.controls.Alert; [Bindable] private var xmldata:XML; private function send_data():void { httpXmlDataService.send(); } private function faultHandler(event:FaultEvent):void{ mx.controls.Alert.show(event.fault.message,"Error in getting result"); } private function resultHandler(event:ResultEvent):void{ xmldata=event.result as XML; } private function displayBeforeTax(row:Object,column:DataGridColumn):String{ return row.profit.beforetax; } private function displayAfterTax(row:Object,column:DataGridColumn):String{ return ro...