Main.java Source code

Introduction

Here is the source code for Main.java

Source

    <p>The following code shows how to create an invalidationListener to be registered with a property.As the property'svalue changes,the invalidated()method will be invoked.</p>

    <myPreCode>

    import javafx.beans.InvalidationListener;
    import javafx.beans.Observable;
    import javafx.beans.property.SimpleIntegerProperty;

    public class Main {
        public static void main(String[] args) {
            SimpleIntegerProperty xProperty = new SimpleIntegerProperty(0);

            // Adding a invalidation listener (anonymous inner class)
            xProperty.addListener(new InvalidationListener() {
                @Override
                public void invalidated(Observable o) {
                    System.out.println(o.toString());
                }
            });

            // Adding a invalidation listener (lambda expression)
            xProperty.addListener((Observable o) -> {
                System.out.println(o.toString());
            });

        }
    }</myPreCode>

    <p>

The difference
    between a
    ChangeListener and
    an invalidationListener.</p><UL><LI>
    Using a
    ChangeListener we
    will get

    the Observable (ObservableValue), the old value, and the new value</LI>
<LI>Using the invalidationListener only gets the

    Observable object (property)</LI>
<LI></LI>
</UL>
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