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== JavaBeans API == The JavaBeans functionality is provided by a set of classes and interfaces in the <code>java.beans</code> package. {| class="wikitable sortable" |- ! Interface !! Description |- | AppletInitializer || Methods in this interface are used to initialize Beans that are also [[Java applet|applet]]s. |-java | BeanInfo || This interface allows the designer to specify information about the events, methods and properties of a Bean. |- | Customizer || This interface allows the designer to provide a graphical user interface through which a bean may be configured. |- | DesignMode || Methods in this interface determine if a bean is executing in design mode. |- | ExceptionListener || A method in this interface is invoked when an exception has occurred. |- | PropertyChangeListener || A method in this interface is invoked when a bound property is changed. |- | PropertyEditor || Objects that implement this interface allow the designer to change and display property values. |- | VetoableChangeListener || A method in this interface is invoked when a Constrained property is changed. |- | Visibility || Methods in this interface allow a bean to execute in environments where the GUI is not available. |}
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