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Author Question: Analyze the following code:import javafx.application.Application;import javafx.scene.Scene;import ... (Read 192 times)

cool

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Question 1

To place two nodes node1 and node2 in a HBox p, use ________.
◦ p.add(node1, node2);
◦ p.getChildren().addAll(node1, node2);
◦ p.getChildren().add(node1, node2);
◦ p.addAll(node1, node2);

Question 2

Analyze the following code:

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.stage.Stage;
import javafx.scene.layout.HBox;
import javafx.scene.shape.Circle;

public class Test extends Application {
@Override // Override the start method in the Application class
public void start(Stage primaryStage) {
HBox pane = new HBox(5);
Circle circle = new Circle(50, 200, 200);
pane.getChildren().addAll(circle);
circle.setCenterX(100);
circle.setCenterY(100);
circle.setRadius(50);
pane.getChildren().addAll(circle);
// Create a scene and place it in the stage
Scene scene = new Scene(pane);
primaryStage.setTitle("Test"); // 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);
}
}

◦ The program has a runtime error since the circle is added to a pane twice.
◦ The program runs fine and displays two circles.
◦ The program has a compile error since the circle is added to a pane twice.
◦ The program runs fine and displays one circle.


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Marked as best answer by cool on May 6, 2020

Hdosisshsbshs

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cool

  • Member
  • Posts: 570
Reply 2 on: May 6, 2020
Excellent


nyrave

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Reply 3 on: Yesterday
Gracias!

 

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