Author Question: Analyze the following code:import javafx.application.Application;import javafx.scene.Scene;import ... (Read 71 times)

armygirl · **on:** May 6, 2020

Analyze the following code:

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.layout.HBox;
import javafx.scene.layout.Pane;
import javafx.geometry.Insets;
import javafx.stage.Stage;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;

public class Test extends Application {
@Override // Override the start method in the Application class
public void start(Stage primaryStage) {

// Create a pane to hold the image views

Pane pane = new HBox(10);

pane.setPadding(new Insets(5, 5, 5, 5));

Image image = new Image("www.cs.armstrong.edu/liang/image/us.gif");

pane.getChildren().addAll(new ImageView(image), new ImageView(image));

// Create a scene and place it in the stage

Scene scene = new Scene(pane);

primaryStage.setTitle("ShowImage"); // 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 runs fine and displays two images.
◦ The image object cannot be shared by two ImageViews.
◦ new Image("www.cs.armstrong.edu/liang/image/us.gif") must be replaced by new Image("http://www.cs.armstrong.edu/liang/image/us.gif").
◦ The addAll method needs to be replaced by the add method.

ky860224 · **Reply #1 on:** May 6, 2020

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