Comments make the code less readable but easier to understand by anyone viewing it.

Answer the following statements true (T) or false (F)

1) To distinguish fields or records there has to be one that is different from every other, this is called the record key. 2) Characters in C# are Unicode characters, each represented by one byte. 3) High-level computer languages are easily understood by a computer without any need of translation. 4) An assembler converts assembly language programs into machine language.

Analyze the following code:

``` import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.control.Button; import javafx.scene.image.Image; import javafx.scene.image.ImageView; import javafx.scene.layout.HBox; import javafx.stage.Stage; public class Test extends Application { @Override // Override the start method in the Application class public void start(Stage primaryStage) { HBox pane = new HBox(5); Image usIcon = new Image("http://www.cs.armstrong.edu/liang/image/usIcon.gif"); Button bt1 = new Button("Button1", new ImageView(usIcon)); Button bt2 = new Button("Button2", new ImageView(usIcon)); pane.getChildren().addAll(bt1, bt2); Scene scene = new Scene(pane, 200, 250); 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); } }``` a. Two buttons displayed with the same icon. b. Only bt2 displays the icon and bt1 does not display the icon. c. Only bt1 displays the icon and bt2 does not display the icon. d. Two buttons displayed with different icons.