Question 21 (1 point) Question 21 Unsaved Analyze the following code: import jav

Question

Question 21 (1 point) Question 21 Unsaved Analyze the following code: import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.control.Button; import javafx.stage.Stage; public class Test extends Application { @Override // Override the start method in the Application class public void start(Stage primaryStage) { // Create a button and place it in the scene Button btOK = new Button("OK"); btOK.setOnAction(e -> System.out.println("OK 1")); btOK.setOnAction(e -> System.out.println("OK 2")); Scene scene = new Scene(btOK, 200, 250); primaryStage.setTitle("MyJavaFX"); // 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); } } Question 21 options: When clicking the button, the program displays OK1. When clicking the button, the program displays OK2. When clicking the button, the program displays OK1 OK2. The program has a compile error, because the setOnAction method is invoked twice. Save Question 22 (1 point) Question 22 Unsaved Which of the following would not be correct in the underline: public class Test { public static void main(String[] args) { Test test = new Test(); test.setAction2(______________________________); } public void setAction2(T2 t) { t.m(4.5); } } interface T2 { public void m(Double d); } Question 22 options: () -> System.out.print(e) (e) -> System.out.print(e) e -> System.out.print(e) (e) -> {System.out.print(e);}

Explanation / Answer

Multiple Questions : Answering one :..

The answer is : When clicking the button, the program displays OK2

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.