What's the Difference Between `fx:id` and `id` in JavaFX?

Understanding the Difference Between fx:id and id in JavaFX

Many JavaFX beginners encounter questions about the distinction between fx:id and id when using the Scene Builder. This article aims to shed light on their respective roles.

CSS Styling (id)

The id attribute represents a CSS ID used to identify components for styling purposes. By setting an id for a component,例えば

Controller Interaction (fx:id)

On the other hand, the fx:id attribute is employed when you need to interact with components in your controller class. By annotating a field in your controller with @FXML and assigning it an fx:id, 例如 @FXML Text myWelcomeText, you establish a link between the FXML file and the controller. This allows you to manipulate the component's properties, access its events, and perform other operations from your controller.

Key Difference

In summary, id is primarily used for CSS styling, enabling you to apply custom looks to components. fx:id, on the other hand, facilitates component interaction within the controller, allowing you to interact with and change the behavior of components from your code.

The above is the detailed content of What's the Difference Between `fx:id` and `id` in JavaFX?. For more information, please follow other related articles on the PHP Chinese website!