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JAXFront - http://www.jaxfront.org/
A XML schema based GUI rendering engine generates presentation GUIs "on-the-fly", using an XML schema based representation of the business model. It offers a powerful Visual Editor (XUI-Editor) for adjusting or completely redesign GUI and Forms with drag and drop. |
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Abeille Forms Designer - https://abeille.dev.java.net/
A GUI builder for Java applications. Developers and designers can create complex, professional forms. Designers can drop and drop components onto a WYSIWYG editor. [Open source, LGPL] |
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Simplicity for Java - http://www.datarepresentations.com/
Java GUI development environment for any Java-enabled platform. Professional version includes database integration, servlet development, and cross-platform testing. [Commercial] |
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GridBagger - http://www.cellspark.com/GridBagger.html
A visual editor for creating GUI's with Java's GridBagLayout class. [Freeware] |
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Ribs - ReportMill's Interface Builder for Swing - http://www.reportmill.com/ribs/
Offers a GUI updating modell, one point of entry response handling and a springs and struts absolute positioned layout. The site informs on features, offers documentation, and a WebStart demo. [Commmercial] |