Threads II

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.control.Label?>
<?import javafx.scene.control.TextField?>
<?import javafx.scene.layout.AnchorPane?>

<AnchorPane
    prefHeight="160.0"
    prefWidth="644.0"
    xmlns="http://javafx.com/javafx/8.0.121"
    xmlns:fx="http://javafx.com/fxml/1"
    fx:controller="sample.Controller">

    <TextField
        fx:id="textField"
        layoutX="14.0"
        layoutY="14.0" />

    <Label
        fx:id="label"
        layoutX="195.0"
        layoutY="19.0" />

</AnchorPane>

import javafx.fxml.FXML;
import javafx.scene.control.Label;
import javafx.scene.control.TextField;

public class Controller {

    @FXML
    private TextField textField;

    @FXML
    private Label label;

    public void initialize() {
        label.textProperty().bind(textField.textProperty());
    }

}

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.control.Button?>
<?import javafx.scene.control.ProgressBar?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.text.Text?>

<AnchorPane
    xmlns:fx="http://javafx.com/fxml/1"
    prefHeight="196.0"
    prefWidth="969.0"
    xmlns="http://javafx.com/javafx/8.0.121"
    fx:controller="Controller">

    <Text
        fx:id="name"
        layoutX="27.0"
        layoutY="43.0"
        strokeType="OUTSIDE"
        strokeWidth="0.0"
        text="Progress"
        wrappingWidth="210" />
    
    <ProgressBar
        fx:id="progress"
        layoutX="25.0"
        layoutY="126.0"
        prefHeight="20.0"
        prefWidth="958.0"
        progress="0.0"
        AnchorPane.leftAnchor="25.0"
        AnchorPane.rightAnchor="25.0" />

</AnchorPane>

import javafx.concurrent.Task;
import javafx.fxml.FXML;
import javafx.scene.control.ProgressBar;
import javafx.scene.text.Text;

public class Controller {

    // A keyword final means that,
    // variable's value cannot be changed
    public static final int VALUTE_TO_COMPLETE = 1000;

    @FXML
    private Text name;

    @FXML
    private ProgressBar progress;

    @FXML
    public void initialize() {

        // Create a task
        Task progressTask = new Task() {
            @Override
            protected Integer call() throws Exception {
                int value = 0;
                while (value < VALUTE_TO_COMPLETE) {
                    value++;
                    updateMessage("Reached value: " + value);
                    updateProgress(value, VALUTE_TO_COMPLETE);
                    Thread.sleep(100);
                }
                return value;
            }
        };

        // Bind values
        progress.progressProperty().bind(progressTask.progressProperty());
        name.textProperty().bind(progressTask.messageProperty());

        // Start
        Thread thread = new Thread(progressTask);
        thread.setDaemon(true);
        thread.start();

    }

}

<Button
    layoutX="712.0"
    layoutY="25.0"
    minHeight="77.0"
    minWidth="238.0"
    mnemonicParsing="false"
    onAction="#stop"
    prefHeight="77.0"
    prefWidth="238.0"
    text="Stop" />

// We check in a loop it a task is not cancelled
// from the outside
Task<Integer> progressTask = new Task<Integer>() {
    @Override
    protected Integer call() throws Exception {
        int value = 0;
        while (!isCancelled()) {
            value++;
            updateMessage("Reached value: " + value);
            updateProgress(value, VALUTE_TO_COMPLETE);
            Thread.sleep(100);
            if (value >= VALUTE_TO_COMPLETE) return value;
        }
        return value;
    }
};

// Method connected with a button.
@FXML
public void stop() {
    progressTask.cancel();
}