Introduction to Java Programming, Sixth Edtion

Introduction to Java Programming, Sixth Edition, Y. Daniel Liang

Chapter 1 Introduction to Computers, Programs, and Java

Section 1.2 What is a Computer?

1 ________ is the physical aspect of the computer that can be seen.

A. Hardware

B. Software

C. Operating system

D. Application program

2 __________ is the brain of a computer.

A. Hardware

B. CPU

C. Memory

D. Disk

3 The speed of CPU is measured in __________.

A. megabytes

B. gigabytes

C. megahertz

D. gigahertz

4 Why do computers use zeros and ones?

A. because combinations of zeros and ones can represent any numbers and characters.

B. because digital devices have two stable states and it is natural to use one state for 0 and the other for 1.

C. because binary numbers are simplest.

D. because binary numbers are the bases upon which all other number systems are built.

5 One byte has ________ bits.

A. 4

B. 8

C. 12

D. 16

6 A 3.5-inch floppy can hold up to _________ bytes.

A. 0.5 MB.

B. 1.44 MB.

C. 10 MB.

D. 100 MB.

7 A regular CD-ROM can hold up to _________ bytes.

A. 100 MB.

B. 700 MB.

C. 1 GB.

D. 10 GB.

8 ____________ is a device to connect a computer to a local area network (LAN).

A. regular modem

B. DSL

C. Cable modem

D. NIC

Section 1.3 Programs

9 ____________ are instructions to the computer.

A. Hardware

B. Software

C. Programs

D. Keyboards

10 Computer can execute the code in ____________.

A. machine language

B. assembly language

C. high-level language

D. none of the above

11 ___________ translates high-level language program into machine language program.

A. An assembler

B. A compiler

C. CPU

D. The operating system

Section 1.4 Operating Systems

12 ____________ is an operating system.

13 _____________ is a program that runs on a computer to manage and control a computer's activities.

Section 1.5 Number Systems (Optional)

14 Decimal number 10 is binary number ____________.

15 Decimal number 20 is hexadecimal number ____________.

16 Binary number 1001 is decimal number ____________.

17 Binary number 1001 is hexadecimal number ____________.

18 Hexadecimal number A1 is decimal number ____________.

19 Hexadecimal number A1 is binary number ____________.

Section 1.6 Java, World Wide Web, and Beyond

20 Java was developed by ____________.

21 Java ___________ can run from a Web browser.

A. applications

B. applets

C. servlets

D. Micro Edition programs

22 ________ is an object-oriented programming language.

23 ________ is interpreted.

24 ________ is Architecture-Neutral.

Section 1.7 The Java Language Specification, API, JDK, and IDE

25 ________ is a technical definition of the language that includes the syntax and semantics of the Java programming language.

A. Java language specification

B. Java API

C. Java JDK

D. Java IDE

26 ________ contains predefined classes and interfaces for developing Java programs.

A. Java language specification

B. Java API

C. Java JDK

D. Java IDE

27 ________ consists of a set of separate programs for developing and testing Java programs, each of which is invoked from a command line.

A. Java language specification

B. Java API

C. Java JDK

D. Java IDE

28 ________ provide an integrated development environment (IDE) for rapidly developing Java programs. Editing, compiling, building, debugging, and online help are integrated in one graphical user interface.

A. Java language specification

B. Java API

C. Java JDK

D. Java IDE

Section 1.8 A Simple Java Program

29 The main method header is written as:

A. public static void main(string[] args)

B. public static void Main(String[] args)

C. public static void main(String[] args)

D. public static main(String[] args)

E. public void main(String[] args)

30 Which of the following statements is correct to display Welcome to Java on the console?

A. System.out.println('Welcome to Java');

B. System.out.println("Welcome to Java");

C. System.println('Welcome to Java');

D. System.out.print('Welcome to Java');

E. System.out.print("Welcome to Java");

Section 1.9 Creating, Compiling, and Executing a Java Program

31 The JDK command to compile a class in the file Test.java is

32 Which JDK command is correct to run a Java application in ByteCode.class?

33 Java compiler translates Java source code into _________.

A. Java bytecode

B. machine code

C. assembly code

D. another high-level language code

34 _________ is a software that interprets Java bytecode.

A. Java virtual machine

B. Java compiler

C. Java debugger

D. Java API

35 Suppose you define a Java class as follows:

public class Test {

}

In order to compile this program, the source code should be stored in a file named

36 The extension name of a Java bytecode file is

A. .java

B. .obj

C. .class

D. .exe

37 The extension name of a Java source code file is

A. .java

B. .obj

C. .class

D. .exe

Section 1.10 Anatomy of the Java Program

38 Which of the following lines is not a Java comment?

39 Which of the following are the reserved words?

A. public

B. static

C. void

D. class

40 Every statement in Java ends with ________.

A. a semicolon (;)

B. a comma (,)

C. a period (.)

D. an asterisk (*)

41 A block is enclosed inside __________.

A. Parentheses

B. Braces

C. Brackets

D. Quotes

Section 1.11 Displaying Text in a Message Dialog Box

42 The __________ method displays a message dialog box.

A. JOptionPane.showMessage(null, "Welcome to Java!", "Example 1.2 Output", JOptionPane.INFORMATION_MESSAGE);

B. JOptionPane.displayMessage(null, "Welcome to Java!", "Example 1.2 Output", JOptionPane.INFORMATION_MESSAGE);

C. JOptionPane.displayMessageDialog(null, "Welcome to Java!", "Example 1.2 Output", JOptionPane.INFORMATION_MESSAGE);

D. JOptionPane.showMessageDialog(null, "Welcome to Java!", "Example 1.2 Output", JOptionPane.INFORMATION_MESSAGE);

E. JOptionPane.showMessageDialog(null, "Welcome to Java!");