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…
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…
)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…
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 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…
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…
1)You can declare two variables with the same name in ________. 1) _______ A)a method one as a formal parameter and the other as a local variable B)different methods in a class C)two nested blocks in a method (two nested blocks means one being inside…
1)Which code fragment would correctly identify the number of arguments passed via the command line to a Java application, excluding the name of the class that is being invoked? 哪个代码片段可以正确地标识通过命令行传递给Java应用程序的参数的数量,而不包括正在调用的类的名称? A)int count=0; while (…
1)What is the representation of the third element in an array called a? 1) _______ A)a(3) B) a(2) C) a[2] D) a[3] 2)If you declare an array double[ ] list = {3.4, 2.0, 3.5, 5.5}, list[1] is ________. 2) _______ A)3.4 B)5.5 C)2.0 D)3.4 E)undefined…
1)Suppose your method does not return any value, which of the following keywords can be used as a return type? A)void B)public C)int D)double E)None of the above 2)The signature(函数签名) of a method consists of ________. A)method name and parameter…
1)How many times will the following code print "Welcome to Java"? int count = 0; while (count < 10) { System.out.println("Welcome to Java"); count++; } A)8 B) 9 C) 0 D) 11 E) 10 2)Analyze the following code. (Choose all that apply.)…
1)The "less than or equal to" comparison operator in Java is ________. A)<< B) != C) =< D) <= E) < 2)The equal comparison operator in Java is ________. A)!= B) <> C) ^= D) == 3)What is 1 + 1 + 1 + 1 + 1 == 5? A)true B)fal…
1)________ is the physical aspect of the computer that can be seen. A)Hardware B) Operating system C)Application program D) Software 2)________ is the brain of a computer. A)Disk B) Memory C)Hardware D) CPU 3)The speed of the CPU is measured in _____…
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…
『Python题库 - 填空题』Python笔试填空题 part 1. Python语言概述和Python开发环境配置 part 2. Python语言基本语法元素(变量,基本数据类型, 基础运算) part 3. Python中的程序控制结构 (Python if判断,for和while循环相关知识点) part 4. Python中的代码复用(Python函数相关知识点) part 5. Python面向对象编程(类,异常,库) part 6. Python文件操作 part 1…
