Question

In Java. JavaFX where you use a spinner to pick a number option 1-8 and then display the text version of that number under it. You will need a string spinner and a text object for sure. Thank you in advance

Answer 1

Here is the completed code for this problem. Comments are included, go through it, learn how things work and let me know if you have any doubts or if you need anything to change. If you are satisfied with the solution, please rate the answer. Thanks

// SpinnerExample.java

import javafx.application.Application;

import static javafx.application.Application.launch;

import javafx.geometry.Pos;

import javafx.scene.Scene;

import javafx.scene.control.Spinner;

import javafx.scene.layout.Pane;

import javafx.scene.layout.VBox;

import javafx.scene.text.Text;

import javafx.stage.Stage;

public class SpinnerExample extends Application {

    //a spinner object to display the numbers

    Spinner<Integer> spinner;

    //Text object to display the text value of the number

    Text text;

    //string array to store word representation of each number

    String stringValues[] = {"one", "two", "three", "four", "five", "six", "seven", "eight"};

    @Override

    public void start(Stage primaryStage) {

        //initializing a spinner that shows values from 1 to 8, with 1 being initial value

        spinner = new Spinner<Integer>(1, 8, 1);

        //adding listener to spinner to call update method when changed

        spinner.valueProperty().addListener(e -> update());

        //initializing the text field with value of 1 (one)

        text = new Text(stringValues[0]);

       

        //creating a Vbox to arrange elements, setting alignment and spacing, and initializing a scene

        VBox root = new VBox(spinner, text);

        root.setAlignment(Pos.CENTER);

        root.setSpacing(20);

        Scene scene = new Scene(root, 300, 100);

        primaryStage.setScene(scene);

        primaryStage.setTitle("Spinner");

        primaryStage.show();

    }

   

    //handler method

    public void update() {

        //getting value from spinner

        int value = spinner.getValue();

        //using value-1 as index of equivalent word from stringValues

        text.setText(stringValues[value - 1]);

    }

    public static void main(String[] args) {

        launch(args);

    }

}

/*OUTPUT*/