How to make the update immediately when the jSpinner value was changed. ChangeListener listener = new ChangeListener() { public void stateChanged(ChangeEvent e) { jLabel.setText(e.getSource()); ...

I have this object: public class Oggetto{ private int value; private boolean valid; public Oggetto(int value, boolean valid) { this.value = value; this.valid = valid; } public int getValu...

From the JavaDoc: ObservableList theList = ...; theList.addListener(new ListChangeListener<Item>() { public void onChanged(Change<tem> c) { while (c.next()) { if (c.wasPermutated(...

How do I write a new ListChangeListener() with lambda in java8? listItems.addListener(new ListChangeListener<Item>() { @Override public void onChanged( javafx.collections.ListChangeListen...

i have a JavaFX Application and in there a concurrency Task. While the Task is running, i want to append the message from updateMessage() to a TextArea because the binding doesn't append new text ...

I build a custom property and add it to a observable list. But no listener is called if property content is changed. The following code snippets shows you the 'building': public static final class...

What is the difference between ChangeListener and ItemListener for JCheckBox and JRadioButton? Both of them work fine when they are selected/deselected. I know that some components doesn't support...

I have a question to the bind functionality in JavaFX. What I want is to bind 2 string properties. But their values should not be equal. Let's make me an example: I have a StringProperty with rep...

I have a preference that controls whether or not my app plays a sound whenever the user clicks a button (which is done quite often, think of a calculator). Each time the user clicks the button the ...

I'm making an application that uses a JSpinner with a max number 30,I should choose a value from this JSpinner and tape a String to the JTextField and the result will appear in the Textarea,when I ...

I need to detect when the selected tab changes, and get its index. The following code works, but it fires the println as many times as the amount of tabs currently loaded: tabbedPane.addChangeListe...