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Home Java

How to close a JavaFX application or window | 100% best for beginners

June 16, 2021 - Updated on September 24, 2022
in Java
Reading Time: 2 mins read
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close a JavaFX application or window
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  • JavaFX close application
  • How to close a JavaFX application or window
  • Example 1: This will close your JavaFX application entirely
  • Example 2: Closing the application in the decorated window
  • How to close a window in the JavaFX application
  • Example 1: If you are using a decorated stage
  • YouTube Video

JavaFX close application

When you are closing your JavaFX application don’t call the System.exit() method as you may be used to doing in other Java programs. I think many beginners wonder how to properly close a JavaFX application. Unlike the Java Swing, we can just simply close the application by calling the System.exit() method.

In this tutorial, I will show you some examples of closing the entire JavaFX application and a specific window.

How to close a JavaFX application or window

Close a JavaFX application or window by calling the Platform.exit() method to properly close a JavaFX application or window. By performing this method, your entire JavaFX application will close. This means that all of your stages will be closed too. Simply call the javafx.application.Platform.exit() to define it properly on your code.

Example 1: This will close your JavaFX application entirely

In this example, I used the MouseEvent to perform an action in the close button using an undecorated stage.

 
@FXML
private void Close_clicked(MouseEvent event) {
   javafx.application.Platform.exit();
}

Example 2: Closing the application in the decorated window

In this example, I defined the stage.setOnCloseRequest() and used the Lambda function to perform the close button on the decorated stage.

stage.setOnCloseRequest(event ->{
   javafx.application.Platform.exit();
});

How to close a window in the JavaFX application

If you have multiple stages or windows opened in your JavaFX application and you want to close one of them. Then to close it properly, you may need to call the close() method. The close() is equivalent to hide. To define it properly in your code. See the example code below.

Example 1: If you are using a decorated stage

In this example, I am closing the window using the decorated window, and I used a Lambda function to close the window.

stage.setOnCloseRequest(event ->{
   stage.close();
});

close a JavaFX application or window

YouTube Video

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What’s up! Kent is my name. The name KENSOFT is derived from the words Kent and Software. My programming language of choice is Java

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