Deck 1: Introduction

Question 1

Which statement best describes a computer program?

A) A program is a sequence of comments.
B) A program can decide what task it is to perform.
C) A program is a sequence of instructions and decisions that the computer carries out.
D) A program can only perform one simple task.

Answer 1

C

Question 2

What translates Java source code into files that contain instructions for the JVM?

A) linker
B) compiler
C) assembler
D) interpreter

Answer 2

B

Question 3

Which statement is true about running a Java program on a different CPU?

A) You need different Java source code for each processor.
B) You can take code that has been generated by the Java compiler and run it on different CPUs.
C) You need to recompile the Java program for each processor.
D) You cannot run the program on a computer with a different processor because Java, being a high-level programming language, is machine dependent.

Answer 3

B

Question 4

Which of the following is not contained on the motherboard of a computer?

A) RAM
B) integrated circuit
C) hard disk
D) CPU

Question 5

Which one of the following is NOT a function of a CPU?

A) Performing arithmetic operations
B) Processing data and controlling programs
C) Querying a database
D) Fetching and storing data from storage and input devices

Question 6

What does CPU stand for?

A) Computer Programming Unit
B) Computer Processing Unit
C) Central Processing Unit
D) Central Programming Unit

Question 7

What are the electrical lines called that interconnect the CPU, RAM, and the electronics controlling the hard disk and other devices?

A) bus
B) network
C) optical disk
D) power lines

Question 8

Which part of a computer contains the CPU, the RAM, and connectors to peripheral devices?

A) network
B) bus
C) motherboard
D) optical disk

Question 9

Which one of the following memory types provides storage that persists without electricity?

A) primary storage
B) RAM
C) memory
D) secondary storage

Question 10

What is the JVM?

A) A vital machine that never fails to run compiled Java code.
B) A vital machine that compiles Java code into machine instructions.
C) A virtual machine that runs compiled Java code on any CPU.
D) A virtual machine that compiles Java code into machine instructions.

Question 11

When was Java officially introduced?

A) 1989
B) 1995
C) 2005
D) 2000

Question 12

Which type of secondary storage consists of rotating platters, which are coated with a magnetic material, and read/write heads, which can detect and change the patterns of varying magnetic flux on the platters?

A) hard disk
B) flashdrive
C) DVD
D) RAM

Question 13

What term is used to refer to the computer instructions that are executed by a CPU, which are specific to each CPU?

A) virtual machine
B) machine code
C) high-level code
D) instruction set

Question 14

What term is used to refer to languages that allow programmers to describe tasks at a higher conceptual level than machine code?

A) virtual
B) high-level
C) sophisticated
D) conceptual

Question 15

For a program to be executed, where must it reside so that the CPU can read its instructions?

A) optical disk
B) primary memory
C) secondary memory
D) hard disk

Question 16

What translates high-level descriptions into machine code?

A) debugger
B) assembler
C) compiler
D) linker

Question 17

Which statement regarding computer programs is correct?

A) Computer programs can decide what task to perform.
B) Large and complex computer programs are generally written by only one programmer.
C) Computer programs are composed of extremely primitive operations.
D) Small computer programs are not documented.

Question 18

Which memory type does not provide persistent storage?

A) secondary storage
B) hard disk
C) primary storage
D) DVD

Question 19

Which type of storage is made from memory chips?

A) CD
B) hard disk
C) primary storage
D) DVD

Question 20

What is the term used to refer to Java code that runs in a browser?

A) applet
B) script
C) html
D) class

Question 21

A method may be called by specifying which 3 items in the specified order?

A) method name, parameters, object
B) object, parameters, method name
C) object, method name, parameters
D) class, parameters, method name

Question 22

In a console window, assuming that MyClass includes the main method, how do you run the program?

A) java MyClass.class
B) javac MyClass
C) java MyClass
D) javac MyClass.java

Question 23

What term is used to refer to text in a program that helps human readers understand the program?

A) methods
B) comments
C) constants
D) statements

Question 24

When a Java application starts, what is the name of the method that is executed?

A) main
B) start
C) begin
D) Main

Question 25

A(n) ____ is a collection of code that has been programmed and translated by someone else, ready for use in your program.

A) method
B) class
C) parameter
D) library

Question 26

A __________ contains sequences of instructions to perform a particular task.

A) parameter
B) label
C) variable
D) method

Question 27

What is the name of the file declaring the class named MyClass?

A) MyClass
B) myclass.java
C) MyClass.class
D) MyClass.java

Question 28

Parameters to methods are enclosed by these symbols.

A) ()
B) ""
C) {}
D) //

Question 29

What term is used to refer to a sequence of characters enclosed in quotation marks?

A) string
B) object
C) comment
D) variable

Question 30

In Java, every statement must end with this symbol.

A) )
B) )
C) !
D) ;

Question 31

What term is used to refer to an instruction in a method?

A) statement
B) constant
C) comment
D) object

Question 32

In a console window, how do you compile the declaration of the class MyClass?

A) javac MyClass.java
B) javac MyClass
C) java MyClass.java
D) java MyClass

Question 33

The Java compiler ignores any text between ____.

A) (* and *)
B) /* and */
C) {* and *}
D) // and //

Question 34

Every Java program consists of one or more of these fundamental building blocks.

A) class
B) CPU
C) applet
D) parameter

Question 35

A method is called on what entity in the program?

A) constant
B) statement
C) comment
D) object

Question 36

What entity belongs to a class and is manipulated in a program?

A) constant
B) package
C) object
D) comment

Question 37

Which statement best describes the portability characteristic of Java?

A) It is easy to copy Java source code from one machine to another.
B) The same Java class files will run on different operating systems without change.
C) It is easy to compile Java source code on different operating systems.
D) It is easy to change a Java program so that it will work on different operating systems.

Question 38

Text enclosed between this and the end of line is ignored by the compiler.

A) ''
B) //
C) ()
D) ""

Question 39

What term is used to refer to information passed in to a method on a call?

A) class
B) object
C) parameter
D) comment

Question 40

What is the name of the file that contains the Java source code for the class BankAccount?

A) BankAccount
B) BankAccount.java
C) BankAccount.class
D) BankAccount.txt

Question 41

What is the output of the following Java statement? System.out.println("4 + 6");

A) 10
B) 46
C) 4
D) 4 + 6

Question 42

What is the name of the file created after a successful compilation of MyClass.java?

A) MyClass.java
B) MyClass.class
C) myClass.class
D) MyClass

Question 43

In a console window, assuming that BankAccountTester includes the main method, how do you run the program?

A) javac BankAccountTester
B) java BankAccountTester.class
C) javac BankAccountTester.java
D) java BankAccountTester

Question 44

What is the object in the given method call? System.out.println("Welcome");

A) println
B) System.out
C) System.out.println
D) System

Question 45

What type of program can you use to enter your Java program?

A) compiler
B) editor
C) spreadsheet
D) database

Question 46

Which statement is true about a Java program?

A) Java forces the programmer to use a particular layout for readability.
B) Java requires that at most one statement appear on one line.
C) The first method that is executed in a Java program is called Main.
D) Java is case sensitive.

Question 47

What is the name of the method in the given method call? System.out.println("Welcome");

A) "Welcome"
B) System
C) println
D) out

Question 48

What does a class file contain?

A) Instructions for the specific CPU on the computer.
B) Instructions for the Java Virtual Machine.
C) The JVM instructions for all classes in the Java application.
D) The Java source code for a class.

Question 49

What is the file extension of a Java class file?

A) )java
B) There is no file extension.
C) )class
D) )txt

Question 50

What is a Java library?

A) A collection of Java source code that has been programmed and can be reused.
B) A collection of books on Java.
C) A collection of electronic documentation on Java.
D) A collection of code that has been programmed and translated by someone else, ready for you to use in your program.

Question 51

The Java compiler translates source code into what type of file?

A) document
B) object
C) class
D) text

Question 52

What is the name of the class declared in the file MyClass.java?

A) MyClass
B) MyClass.class
C) MyClass.java
D) myclass

Question 53

What is the output of the following Java statement? System.out.println(4 + 6);

A) 4 + 6
B) 4
C) 10
D) 46

Question 54

In a console window, what is the name of the command used to compile Java source code?

A) javac
B) javadoc
C) compile
D) java

Question 55

In a console window, how do you compile the declaration of the class BankAccount?

A) java BankAccount
B) javac BankAccount
C) javac BankAccount.java
D) java BankAccount.java

Question 56

Which of the following statements is true about running a Java program?

A) The Java compiler executes your program.
B) The Java virtual machine loads the instructions for the program that you wrote, starts your program, and loads the necessary library files as they are required.
C) The java compiler signals the JVM to execute the program.
D) The javadoc utility runs the documentation of the program.

Question 57

What is the parameter in the given method call? System.out.println("Welcome");

A) out
B) println
C) "Welcome"
D) System

Question 58

Suppose that a computer virus infects your computer and corrupts the files you were going to submit for your current homework assignment. What precaution could have saved you from a disastrously bad grade for this assignment?

A) Defragment the hard drive.
B) Purchase an anti-virus program to remove the virus from your computer.
C) Make regular backups of all your important files.
D) Purchase an extended warranty for your computer.

Question 59

In a console window, what is the name of the command used to run a Java program?

A) javadoc
B) javac
C) java
D) run

Question 60

What is the syntax for calling the println method on the object System.out?

A) println("Any message").System.out;
B) System.out("Any message").println;
C) System.out.println("Any message");
D) println(System.out, "Any message");

Question 61

Assume that the following Java statement is contained in the main method of the class named Welcome: System.out.printLine("Welcome!");
What is the name of the file generated by the Java compiler?

A) Welcome.class
B) Welcome.java
C) No file is generated due to an error.
D) Welcome

Question 62

Who or what is responsible for inspecting and testing the program to guard against logic errors?

A) JVM
B) programmer
C) end-user
D) compiler

Question 63

Assume that the following Java statement is contained in the main method of the class named Hello: System.out.printLine("Hello!");
What is the name of the file generated by the Java compiler?

A) Hello.java
B) Hello
C) No file is generated due to an error.
D) Hello.class

Question 64

Assuming the programmer wishes to output the phrase "Welcome!", which of the following is true about the following Java statement. System.out.Println("Wlcome!");

A) There are no errors.
B) There is a compile-time error.
C) There is a run-time error.
D) There are multiple errors.

Question 65

What is defensive programming?

A) Writing a program that does not contain run-time errors.
B) Programming in a language that allows programmers to describe tasks at a higher conceptual level than machine code.
C) Structuring programs and development processes in such a way that an error in one part of the program does not trigger a disastrous response.
D) Writing a program that does not contain compile-time errors.

Question 66

Assuming the programmer wishes to display "Hello!" on the screen, which statement is true about the following Java statement: System.out.printn("Helo!");

A) There is a run-time error.
B) There are no errors.
C) There is a compile-time error.
D) There are multiple errors.

Question 67

Which statement is true about the following Java statement: System.out.println("Welcome!");

A) There are no errors.
B) There is a run-time error.
C) There are multiple errors.
D) There is a compile-time error.

Question 68

Structuring programs and development processes in such a way that an error in one part of the program does not trigger a disastrous response is referred to as ____.

A) high-level programming
B) offensive programming
C) defensive programming
D) low-level programming

Question 69

What is another term used to describe an error detected by the compiler that is a violation of the programming language rules?

A) typo
B) logic error
C) semantic error
D) run-time error

Question 70

Assuming the programmer wishes to output the phrase "Hello!", which of the following is true about the following Java statement. System.out.println("Welcme!");

A) There are multiple errors.
B) There is a run-time error.
C) There are no errors.
D) There is a compile-time error.

Question 71

What is another term used to describe an error causing a program to take an action that the programmer did not intend?

A) syntax error
B) logic error
C) mistake
D) compile-time error

Question 72

Assuming the programmer wishes to display "Hello!" on the screen, which statement is true about the following Java statement: System.out.println("Hello!");

A) There is a run-time error.
B) There are no errors.
C) There is a compile-time error.
D) There are multiple errors.

Question 73

Which statement is true about the following Java statement: System.out.println("Hello!);

A) There is a run-time error.
B) There are no errors.
C) There is a compile-time error.
D) There are multiple errors.

Question 74

Which one of the following statements regarding backup strategies for Java files is correct?

A) You should have multiple copies of your source files in different locations.
B) You should regularly print out your work so you can retype it in case of data loss.
C) You should regularly back up the Java virtual machine instructions to prevent loss of valuable work.
D) Your compiler automatically makes backups of your source files.

Question 75

What are special software tools called that let you trace through a program to find run-time errors?

A) compiler
B) debugger
C) CPU
D) virtual machine

Question 76

What is the term used to describe an error detected by the compiler that is a violation of the programming language rules?

A) logic error
B) compile-time error
C) run-time error
D) typo

Question 77

Which statement is true about the following Java statement: System.out.Println("Welcome!");

A) There are multiple errors.
B) There are no errors.
C) There is a run-time error.
D) There is a compile-time error.

Question 78

What is the term used to describe an error causing a program to take an action that the programmer did not intend?

A) typo
B) run-time error
C) compile-time error
D) syntax error

Question 79

Which statement is true about the compilation process?

A) The compiler will generate CPU specific instructions even if it detects an error.
B) The compiler will generate Java virtual machine instructions even if it detects an error.
C) The compiler will stop compiling when it finds the first error.
D) The compiler will continue compiling after it finds an error.

Question 80

Assuming the programmer wishes to display "Hello!" on the screen, which statement is true about the following Java statement: System.out.println("Helo!");

A) There is a run-time error.
B) There are no errors.
C) There is a compile-time error.
D) There are multiple errors.