Page Counter

/**
 * @author Sergej Borissov
 * @date: 23.08.2021
 * @idee: Umkehrung der Page Counter Idee zum zählen der geschriebenen Seiten etc.
 *
 *
 */


public class WriteStarter extends Application {


    final int minutesPerHour = 60;
    final int pagesDefaultBook = 300;
    final int pagesPerHour = 4;
    final int daysPerWeek = 7;
    final int daysPerMonth = 30;
    final int daysPerYear = 365;


    public float calculatePagesWeek(){
        return  pagesPerHour * daysPerWeek;
    }

    public float calculatePagesMonth(){
        return pagesPerHour * daysPerMonth;
    }

    public float calculateBooksYear(){
        return (pagesPerHour * daysPerYear) / pagesDefaultBook;
    }

    public float calculateBooks30Years(){
        return  pagesPerHour * daysPerYear * 30 / pagesDefaultBook;
    }



    public static void main(String[] args) {
        launch(args);
    }

    @Override
    public void start(Stage primaryStage) throws Exception {

        primaryStage.setTitle("Pages n Write Counter 2021");
        primaryStage.setMaxWidth(800);
        primaryStage.setMinHeight(700);

        VBox vBox = new VBox();

        CategoryAxis xAxis = new CategoryAxis();
        NumberAxis yAxis = new NumberAxis();

        LineChart<String, Number> lineChart = new LineChart<String, Number>(xAxis,yAxis);
        lineChart.setStyle("-fx-border-color: blue");

        XYChart.Series<String, Number> series1 = new XYChart.Series<String, Number>();
        XYChart.Data<String, Number> pagesPerWeek = new XYChart.Data<>("Schreibseiten pro Woche: ", 0);
        XYChart.Data<String, Number> pagesPerMonth = new XYChart.Data<>("Schreibseiten pro Monat: ", 0);
        XYChart.Data<String, Number> booksPerYear = new XYChart.Data<>("Bücher pro Jahr: ", 0);
        XYChart.Data<String, Number> booksPer30Years = new XYChart.Data<>("Bücher in 30 Jahren ", 0);
        series1.getData().addAll(pagesPerWeek,pagesPerMonth, booksPerYear, booksPer30Years);

        TextField textField = new TextField("Hier Eingabe in Minuten");
        textField.setMinWidth(230);

        textField.textProperty().addListener((observable, oldValue, newValue) -> {


            if (newValue != null) {
                try {

                    pagesPerWeek.setYValue(Float.parseFloat(newValue) / minutesPerHour * calculatePagesWeek());
                    pagesPerMonth.setYValue(Float.parseFloat(newValue) / minutesPerHour * calculatePagesMonth());
                    booksPerYear.setYValue(Float.parseFloat(newValue) / minutesPerHour * calculateBooksYear() );
                    booksPer30Years.setYValue(Float.parseFloat(newValue) / minutesPerHour * calculateBooks30Years());


                } catch (NumberFormatException ex) {
                    ex.printStackTrace();
                }
            }
        });

        lineChart.getData().add(series1);
        vBox.getChildren().addAll(lineChart, textField);

        primaryStage.setScene(new Scene(vBox));
        primaryStage.show();

    }
}