Die Anleitung zum JavaFX für den Anfänger - Hello JavaFX

package org.o7planning.javafx;

import java.net.URL;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.ResourceBundle;

import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.Button;
import javafx.scene.control.TextField;

public class MyController implements Initializable {

   @FXML
   private Button myButton;
 
   @FXML
   private TextField myTextField;
 
   @Override
   public void initialize(URL location, ResourceBundle resources) {

       // TODO (don't really need to do anything here).
     
   }

   // When user click on myButton
   // this method will be called.
   public void showDateTime(ActionEvent event) {
       System.out.println("Button Clicked!");
     
       Date now= new Date();
     
       DateFormat df = new SimpleDateFormat("dd-MM-yyyy HH:mm:ss.SSS");
     
     
        // Model Data
        String dateTimeString = df.format(now);
       
        // Show in VIEW
        myTextField.setText(dateTimeString);
     
   }
 
}

package org.o7planning.javafx;

import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;

public class MyApplication  extends Application {
   
 
    @Override
    public void start(Stage primaryStage) {
        try {
            // Read file fxml and draw interface.
            Parent root = FXMLLoader.load(getClass()
                    .getResource("/org/o7planning/javafx/MyScene.fxml"));

            primaryStage.setTitle("My Application");
            primaryStage.setScene(new Scene(root));
            primaryStage.show();
        
        } catch(Exception e) {
            e.printStackTrace();
        }
    }
   
    public static void main(String[] args) {
        launch(args);
    }
   
}