//file: DialBeanInfo.javapackage magicbeans;import java.beans.*;public class DialBeanInfo extends SimpleBeanInfo {  public PropertyDescriptor[] getPropertyDescriptors(  ) {    try {      PropertyDescriptor value =        new PropertyDescriptor("value", Dial.class);      PropertyDescriptor minimum =        new PropertyDescriptor("minimum", Dial.class);      PropertyDescriptor maximum =        new PropertyDescriptor("maximum", Dial.class);      value.setBound(true);      minimum.setBound(false);      maximum.setBound(false);      return new PropertyDescriptor [] { value, minimum, maximum };    }    catch (IntrospectionException e) {      return null;    }  }}