Command window after pressing buttons:
C:\ece538\JavaFX\JavaPP\ch15\ex1>java HandleEvent OK button clicked Cancel button clicked
HandleEvent.java
import javafx.application.Application; import javafx.geometry.Pos; import javafx.scene.Scene; import javafx.scene.control.Button; import javafx.scene.layout.HBox; import javafx.stage.Stage; import javafx.event.ActionEvent; import javafx.event.EventHandler; public class HandleEvent extends Application { @Override // Override the start method in the Application class public void start(Stage primaryStage) { // Create a pane and set its properties HBox pane = new HBox(10); pane.setAlignment(Pos.CENTER); Button btOK = new Button("OK"); Button btCancel = new Button("Cancel"); OKHandlerClass handler1 = new OKHandlerClass(); btOK.setOnAction(handler1); CancelHandlerClass handler2 = new CancelHandlerClass(); btCancel.setOnAction(handler2); pane.getChildren().addAll(btOK, btCancel); // Create a scene and place it in the stage Scene scene = new Scene(pane); primaryStage.setTitle("HandleEvent"); // Set the stage title primaryStage.setScene(scene); // Place the scene in the stage primaryStage.show(); // Display the stage } /** * The main method is only needed for the IDE with limited * JavaFX support. Not needed for running from the command line. */ public static void main(String[] args) { launch(args); } } class OKHandlerClass implements EventHandler<ActionEvent> { @Override public void handle(ActionEvent e) { System.out.println("OK button clicked"); } } class CancelHandlerClass implements EventHandler<ActionEvent> { @Override public void handle(ActionEvent e) { System.out.println("Cancel button clicked"); } }
Maintained by John Loomis, updated Sun Feb 11 13:01:25 2018