These events require the interaction of the end user. Operating system interrupts, hardware or software failure, timer expiration, and operation completion are some examples of background events.*1 pointForeground EventsBackground Eventsevent handlingeventa set of extensible GUI Components to ease the developer's life to create JAVA based Front End/GUI Applications*1 pointSwing APISwingAPIJava Swingcomponents are independent of native Operating System's API as Swing API controls are rendered mostly using pure JAVA code instead of underlying operating system calls.*1 pointRich Controls − SwingLight Weight − SwingHighly Customizable − SwingPluggable look-and-feel − SWINGcontrols can be customized in a very easy way as visual apperance is independent of internal representation.*1 pointRich Controls − SwingLight Weight − SwingHighly Customizable − SwingPluggable look-and-feel − SWINGIt is built on top of AWT API and acts as a replacement of AWT API, since it has almost every control corresponding to AWT controls. *1 pointSwing APISwingAPIJava Swingbased GUI Application look and feel can be changed at run-time, based on available values.*1 pointRich Controls − SwingLight Weight − SwingHighly Customizable − SwingPluggable look-and-feel − SWINGThey define how UI elements should be organized on the screen and provide a final look and feel to the GUI (Graphical User Interface).*1 pointUI elementslayoutsbehaviourJava SwingA Graphical User Interface (GUI) toolkit that includes the GUI components. *1 pointJava EclipseJava SwingJavaJava ricethe mechanism that controls the event and decides what should happen if an event occurs. *1 pointForeground EventsBackground Eventsevent handlingeventalso known as event handler*1 pointsourcelistenerevent handlermethodsa set of extensible GUI Components to ease the developer's life to create JAVA based Front End/GUI Applications*1 pointSwing APISwingAPIJava Swingan object on which the event occurs*1 pointsourcelistenereventmethodscomponents are independent of native Operating System's API as Swing API controls are rendered mostly using pure JAVA code instead of underlying operating system calls.*1 pointRich Controls − SwingLight Weight − SwingHighly Customizable − SwingPluggable look-and-feel − SWINGresponsible for generating a response to an event.*1 pointsourcelistenerevent handlermethodsThis mechanism has a code which is known as an event handler, that is executed when an event occurs.*1 pointForeground EventsBackground Eventsevent handlingeventThese are the events which occur when the user interacts with UI elements. This part will be covered in the Event Handling chapter.*1 pointUI elementslayoutsbehaviourJava SwingThese are the core visual elements the user eventually sees and interacts with. *1 pointUI elementslayoutsbehaviourJava SwingResponsible for providing information of the occurred event to it's handler*1 pointsourcelistenereventmethodsThese events require direct interaction of the user. *1 pointForeground EventsBackground Eventsevent handlingeventprovides a rich set of advanced controls like Tree, TabbedPane, slider, colorpicker, and table controls.*1 pointRich Controls − SwingLight Weight − SwingHighly Customizable − SwingPluggable look-and-feel − SWING