Which of the following is true of nesting a control within a label??
A. ?It allows the user to move both the label text and the control as a single unit around the page.
B. ?It treats both the label and control as separate objects.
C. ?It restricts the association of label text with the control explicitly.
D. ?It restricts the movement of the insertion pointinto the control on the selection of the linked label.
Answer: A
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Which of the following statements are true?
a. A Scene is a Node. b. A Shape is a Node. c. A Stage is a Node. d. A Control is a Node. e. A Pane is a Node.
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); } }``` a. When clicking the button, the program displays OK1 OK2. b. When clicking the button, the program displays OK1. c. When clicking the button, the program displays OK2. d. The program has a compile error, because the setOnAction method is invoked twice.
Write SQL statements to do the following:
(1) List the name and granted roles of the current user; (2) List name and type of all objects owned by the current user; (3) List table name and the tablespace name to which the table is assigned of all tables owned by the current user; (4) List the next value of the sequence Emp_Seq.
Why are developers concerned with application assets?
A. They like to know what is important B. Play a key role in keeping the application running safe C. They are in charge of protecting D. They are accountable in anything were to happen