Javafx close stage. close() or stage. Learn how to listen for close events in JavaFX stages with step-by-step guidance and code examples. stage. The JavaFX Application Thread is created as part of the startup process for the JavaFX runtime. scene. The primary Stage is constructed by the platform. java in method that handles the action event on the closing button. hide, only closes the one Stage (and its descendants, if any). out. text. This event handler allows you to perform actions when the user attempts to close the stage, such as confirming the close operation or performing cleanup tasks. Scene; import javafx. Stage objects must be constructed and modified on the JavaFX Application Thread. This is exactly what the OP asked, isn't it??? In JavaFX, how can I get the event if a user clicks the Close Button (X) (right most top cross) a stage? I want my application to print a debug message when the window is closed. java class and reference to that one from within the AboutBox. close(): Closes this Stage. When all stages in an application are hidden (or closed if you like, because it is the same thing), the application exits. Font; import javafx. I want to add a Button to close the new stage from within the controller. I have a Stage in JavaFX that can be closed in multiple ways, either by clicking the red (X) or by a Button which calls stage. I want to save a file before closing my JavaFX application. When working with JavaFX applications, it is essential to know how the system handles launching and closing of an application. hide() do this in fx how to implement this in fxml? I tried private void on_btnClose_clicked(Actio Both close the stage, but using hide() doesn't require a cast, if the stage is accessed using the last code snippet. A common requirement in many applications is controlling how the entire application exits when a user closes a window (e. , the main window). Additional Stage objects may be constructed by the application. Confusing, I know, but that's just the way the JavaFX team The JavaFX Stage class is the top level JavaFX container. This is how I'm setting up the handler in Main::start: primaryStage. As hide() is equivalent to close() and close() closes the stage, then hide() also closes the stage. Example: import javafx. Can you clarify more about what exactly you want to happen? In JavaFX, understanding the life cycle of an application is crucial for managing its behavior effectively. By default, JavaFX behaves in a specific way when windows are closed, but developers often need to customize this behavior—for example, ensuring cleanup tasks In JavaFX, you can listen for the close event of a stage (window) by adding an setOnCloseRequest event handler to the Stage object. I'd like to know if there is a simple solution that tells the dialogstage to close when the primary stage does and where I don't have to write much code outside of my try/catch. The only way I found myself to be able to do this, was to define a public static Stage aboutBox; inside the Builder. Learn how to efficiently close a stage in JavaFX after performing long-running tasks by using services and tasks properly. Text; import javafx. close() Regardless of how the Stage is closed, I would like to perform I need to close the current fxml window by code in the controller I know stage. The documentation you linked states that stage. You create a JavaFX Stage object just like any other Java object: Using the new command and the Stage constructor. Instead of creating a new Stage as you have done in your initial attempt, you should retrieve the existing Stage related to the current scene. Stage; Stage { title: "Welcome to JavaFX!" scene: Scene { content: Text { x: 25 y: 25 content: "Hello World!" font: Font{ size: 32 } } } } produces the following on Mac OSX: produces the Is there any way to get it to close when I kill the main stage without writing code to track every single new window created? So far it seems my only option is to register each new window in a list, and when the main window has a 'close event' fired, I also fire this for all the other windows. This call is equivalent to hide (). Stage. Closing an FXML window in JavaFX involves referencing the window's Stage instance from within the Controller. I have multiple windows open and I want to close the entire application if a window is closed. . The JavaFX Stage class is the top level container for the FX script instantiation. println("Stage is cl However in JavaFX I can't find an equivalent. Many of the Stage properties are read only because they can be changed externally by the underlying platform and therefore must not be bindable Dec 7, 2025 · JavaFX is a powerful framework for building desktop applications with rich user interfaces. What is the way to do that in JavaFX? Edit: I understand that I can override setOnCloseRequest() to perform some operation on window close. setOnCloseRequest(event -> { System. The process involves constructing an instance of the specified Application class, calling the init() method, starting the application with The JavaFX Stage class is the top level JavaFX container. Here is an example of creating a JavaFX Stageobject. close, which is equivalent to Stage. What makes you think it will close all stages? Also, the way to "kill/close" a stage in JavaFX is to hide it. g. eha0d, hdoeww, nl0hr, qhel, k3lrnz, zc6c, royal, yjre, kcub, ebqsct,