[FIXED] Get Name/ID from button

Issue

I just created my first javaFX program. It contains 55 Buttons and I trying to find a way to get the id of the buttons that was pressed and save it into a varible without creating one handler for each button.

Edit: I managed to fill 8 GridPane's with a total of 160 buttons and every buttons gives me the name back. I added the solution in case someone is interested.

Thanks James for your time and help!

    for(int i = 1; i < 9; i++ ) {
        for (int j = 0; j < 5; j++) {
            for (int k = 0; k < 4; k++) {
                String buttonText = "" + buttoncounter;
                Button button = new Button(buttonText);
                switch(i){
                    case 1: gp1.add(button, k, j);
                        break;
                    case 2: gp2.add(button, k, j);
                        break;
                    case 3: gp3.add(button, k, j);
                        break;
                    case 4: gp4.add(button, k, j);
                        break;
                    case 5: gp5.add(button, k, j);
                        break;
                    case 6: gp6.add(button, k, j);
                        break;
                    case 7: gp7.add(button, k, j);
                        break;
                    case 8: gp8.add(button, k, j);
                }
                button.setMaxSize(Double.MAX_VALUE, Double.MAX_VALUE);
                button.setOnAction(e -> {
                    buttonPressed = Integer.parseInt(buttonText);
                });
                buttoncounter++;
            }
        }
    }

Solution

You should create the buttons programmatically (i.e. not in FXML). That way you can easily register a different handler with each, and you don't need to look up the button by id or via its text, etc.

For example, in your FXML file, do

<TilePane fx:id="buttonPane" />

And then in the controller:

public class Controller {

    @FXML
    private TilePane buttonPane ;

    public void initialize() {
        for (int i = 1 ; i <= 55 ; i++) {
            String buttonText = "Button "+i ;
            Button button = new Button(buttonText);
            buttonPane.getChildren().add(button);
            button.setOnAction(e -> {
                // whatever you need here: you know the button pressed is the 
                // one and only button the handler is registered with
                System.out.println(buttonText + " clicked");
            });
        }
    }

    // ...
}

Answered By - James_D
Answer Checked By - Katrina (JavaFixing Volunteer)