JavaFX properties.

Author: buckyroberts

JavaFX/028_properties/Main.java

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+import javafx.application.Application;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.layout.StackPane;
+import javafx.stage.Stage;
+
+public class Main extends Application {
+
+    Stage window;
+    Button button;
+
+    public static void main(String[] args) {
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage primaryStage) throws Exception {
+        window = primaryStage;
+        window.setTitle("thenewboston");
+
+        Person bucky = new Person();
+
+        bucky.firstNameProperty().addListener( (v, oldValue, newValue) -> {
+            System.out.println("Name changed to " + newValue);
+            System.out.println("firstNameProperty(): " + bucky.firstNameProperty());
+            System.out.println("getFirstName(): " + bucky.getFirstName());
+        });
+
+        button = new Button("Submit");
+        button.setOnAction(e -> bucky.setFirstName("Porky"));
+
+        StackPane layout = new StackPane();
+        layout.getChildren().add(button);
+        Scene scene = new Scene(layout, 300, 250);
+        window.setScene(scene);
+        window.show();
+    }
+
+
+}

JavaFX/028_properties/Person.java

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+import javafx.beans.property.SimpleStringProperty;
+import javafx.beans.property.StringProperty;
+
+public class Person {
+
+    private StringProperty firstName = new SimpleStringProperty(this, "firstName", "");
+
+    //Returns the StringProperty object
+    public StringProperty firstNameProperty() {
+        return firstName;
+    }
+
+    //Return the firstName value (ie. "Bucky")
+    public String getFirstName() {
+        return firstName.get();
+    }
+
+    //Set the firstName value
+    public void setFirstName(String firstName) {
+        this.firstName.set(firstName);
+    }
+
+
+}