Hello Ninjas, In JavaFX, Layout defines the way in which the components are to be seen on the stage. It basically organizes the scene-graph nodes. We have several built-in layout panes in JavaFX which are HBox, VBox, StackPane, FlowBox, AnchorPane, etc. Each Built-in layout is represented by a separate class which needs to be instantiated in order to implement that particular layout pane. All these classes belong to the javafx.scene.layout package. javafx.scene.layout.Pane class is the base class for all the built-in layout classes in JavaFX.