About including and JRadioButtonMenuItem Metalworks is optimized to work with the Java look and such as that are specific to the Java look and feel Running then you should either specify the complete path to the java command or update your PATH environment variable as described in the installation instructions for the and many controls are non functional They are intended only to show how to construct the UI for such interfaces Things that do work in the Metalworks demo but also the sizes of many controls Also included with this demo is the PropertiesMetalTheme class