When building applications using Flex (for AIR or Flash Player), you can use declarative programming to specify part of your user interface. The declarative language of Flex is XML-based and called MXML.
Here’s a simple app in Flex/MXML:
<?xml version="1.0" encoding="utf-8"?><mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" title="Hello Rich Internet Application" backgroundColor="#FFFFFF" > <mx:VBox horizontalAlign="center" horizontalCenter="0" verticalCenter="0"> <mx:Button label="Click Me" click="mx.controls.Alert.show( 'ActionScript and Flex are a match made in heaven!', 'Flex Rocks!');"/> <mx:Label fontSize="24" fontWeight="bold" color="#1A49DF" text="Flex Makes RIA Development Easy" /> </mx:VBox>
</mx:WindowedApplication>
Here’s the equivalent app in JavaFX:
/* * HelloCompiledJavaFX.fx - A "Hello World" style, but slightly more * sophisticated, compiled JavaFX Script example * * Developed 2008 by James L. Weaver (jim.weaver at lat-inc.com) * to serve as a compiled JavaFX Script example. */package mypackage;
import javafx.ui.*;import javafx.ui.canvas.*;
Frame { title: "Hello Rich Internet Applications!" width: 550 height: 200 background: Color.WHITE visible: true content: BorderPanel { top: FlowPanel { content: Button { text: "Click Me" action: function():Void { MessageDialog { title: "JavaFX Script Rocks!" // This string has a newline in the source code message: "JavaFX Script is Simple, Elegant, and Leverages the Power of Java" visible: true } } } } center: Canvas { content: Text { font: Font { faceName: "Sans Serif" style: FontStyle.BOLD size: 24 } x: 20 y: 40 stroke: Color.BLUE fill: Color.BLUE content: "JavaFX Script Makes RIA Development Easy" } } }}
(from http://java.sun.com/developer/technicalArticles/scripting/javafx/ria_1/)