Chapter 14 JavaFX Basics Section 14.2 JavaFX vs Swing and AWT1. Why is JavaFX preferred?a. JavaFX is much simpler to learn and use for new Java programmers.b. JavaFX provides a multi-touch support for touch-enabled devices such as tablets and smart p…

Chapter 16 JavaFX UI Controls and Multimedia Section 16.2 Labeled and Label1. To create a label with the specified text, use __________.a. new Labelled();b. new Label();c. new Labelled(text);d. new Label(text);Key:d #2. To set a red color for the tex…

1)Suppose a Scanner object is created as follows: Scanner input = new Scanner(System.in); What method do you use to read an int value? A) input.nextInteger(); B) input.integer(); C) input.nextInt(); D) input.int(); 2)The following code fragment reads…

)What is the output of running class Test? public class Test { public static void main(String[ ] args) { new Circle9(); } } public abstract class GeometricObject { protected GeometricObject() { System.out.print("A"); } protected GeometricObject(…

1)________ represents an entity(实体) in the real world that can be distinctly identified. 1) _______ A)A data field B) An object C)A method D) A class 2)________ is a construct that defines objects of the same type.  2) _______ A)A method B) A data fi…

说出一些常用的类,包,接口,请各举5个 常用的类:BufferedReader  BufferedWriter  FileReader  FileWirter  String Integer java.util.Date,System,Class,List,HashMap 常用的包:java.lang  java.io  java.util   java.sql ,javax.servlet,org.apache.strtuts.action,org.hibernate 常用的接口:Remote…

Introduction to Java Programming 的最后一章,完结撒花!Chapter 17 Binary I/O Section 17.2 How is I/O Handled in Java?1. Which of the following statements are true?a. A File object encapsulates the properties of a file or a path, but does not contain the methods…

Chapter 15 Event-Driven Programming and Animations Section 15.2 Events and Event Sources1.    A JavaFX action event handler is an instance of _______.a.    ActionEventb.    Actionc.    EventHandlerd.    EventHandler<ActionEvent>Key:daction event han…

异常处理 1)What is displayed on the console when running the following program? class Test { public static void main (String[ ] args) { try { System.out.println("Welcome to Java"); } finally { System.out.println("The finally clause is executed&…

1)Analyze the following code: public class Test { public static void main(String[ ] args) { B b = new B(); b.m(5); System.out.println("i is " + b.i); } } class A { int i; public void m(int i) { this.i = i; } } class B extends A { public void m(S…