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From: Jeff Higgins <jeff@invalid.invalid>
Newsgroups: comp.lang.java.programmer
Subject: Re: Returning to Java - have questions
Date: Sun, 25 Jan 2015 10:11:29 -0500
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Xref: csiph.com comp.lang.java.programmer:30860

On 01/25/2015 08:04 AM, Jeff Higgins wrote:
>
> Works for me.
>
Actually, this is better.

import javafx.application.Application;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.image.ImageView;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

public class HelloWorld extends Application {

   @Override
   public void start(Stage primaryStage) {
     Button btn = new Button();
     btn.setText("Say 'Hello World'");
     btn.setGraphic(new ImageView("file:///home/jeff/bomb_fuse_unlit.png"));

     btn.armedProperty().addListener(new ChangeListener<Boolean>() {
       @Override
       public void changed(ObservableValue<? extends Boolean> observable,
           Boolean oldValue, Boolean newValue) {
         if(oldValue == false && newValue == true) {
           btn.setGraphic(new 
ImageView("file:///home/jeff/bomb_fuse_lit.png"));
         }
         if(oldValue == true && newValue == false){
           btn.setGraphic(new 
ImageView("file:///home/jeff/bomb_fuse_unlit.png"));
         }
       }
     });

     StackPane root = new StackPane();
     root.getChildren().add(btn);

     Scene scene = new Scene(root, 300, 250);

     primaryStage.setTitle("Hello World!");
     primaryStage.setScene(scene);
     primaryStage.show();
   }

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