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JavaFX is a modern GUI toolkit used in Java for building rich desktop applications with an intuitive and flexible architecture. In Object Oriented Programming using Java Lab, JavaFX is commonly used to demonstrate event-driven programming, scene graph management, object interaction, and separation of concerns through classes and methods. The core concept of JavaFX revolves around the Application class, Stage, Scene, layout panes, controls, and event handling mechanisms. A JavaFX program extends the Application class and overrides the start() method, which serves as the entry point for GUI creation. The main method calls launch(), which internally initializes the JavaFX runtime and invokes the start() method. The Stage represents the main window of the application. Inside the stage, a Scene is placed, which acts as a container for all graphical components. These components are organized using layout panes such as VBox, HBox, BorderPane, or GridPane. Controls like Button, Label, TextField, and TextArea are added to layouts to create interactive interfaces. Event handling is achieved using _____ _________ ______ ______ ____.
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