Deck 2: Applications and Data

Question 1

A(n) ____ is the name of a programming object - for example, a class, method, or variable.

A)convention
C)keyword
B)identifier
D)class header

Answer 1

B

Question 2

You can use named constants to make your programs easier to understand by eliminating ____.

A)constants
C)strings
B)variables
D)magic numbers

Answer 2

D

Question 3

The convention used in this book for named constants is ____ characters ____ underscores to separate words.

A)uppercase, with
C)lowercase, with
B)uppercase, without
D)lowercase, without

Answer 3

A

Question 4

An item's data type defines what operations can be performed on the item.

Question 5

Which of the following is correct if the data type of inventoryItem is string?

A)inventoryItem = 3
C)inventoryItem = -9
B)inventoryItem = "printer"
D)inventoryItem = (printer)

Question 6

Which of the following is correct if the data type for weight is num?

A)weight = 2.75
C)weight = (2.75)
B)weight = "2.75"
D)weight = "heavy"

Question 7

In an interactive program, a ____ enters data.

A)disk
C)user
B)database
D)graphical user interface

Question 8

Three types of program structures are sequence, selection, and loop.

Question 9

In echoing input, the program tells the user the desired form of the input data.

Question 10

A named constant can be assigned a value multiple times.

Question 11

A(n) ____ is a named set of statements that perform some task or group of tasks within an application.

A)method
C)object
B)class
D)flowchart

Question 12

An adjective would be a good choice of identifier for a variable that holds status.

Question 13

String values are also called ____ values.

A)unnamed
C)alphabetic
B)digit
D)alphanumeric

Question 14

The assignment operator is said to have right-to-left associativity.

Question 15

A loop structure does not contain a decision point.

Question 16

A noun would be a good choice for a variable or constant identifier.

Question 17

Computers deal with two basic types of data - text and string.

Question 18

A literal numeric constant does not change.

Question 19

____ constants do not have identifiers like variables do.

A)Alphabetic
C)Unnamed
B)Named
D)Uncertain

Question 20

There will always be only one class ____ for each class.

A)statement
C)header
B)method
D)footer

Question 21

Sequences never include ____.

A)terminations
C)decisions
B)tasks
D)steps

Question 22

What is one drawback to including program comments?

A)They take up too much memory.
C)You cannot use abbreviations.
B)They must be kept current.
D)They make a program difficult to read.

Question 23

____________________ are named memory locations with contents that can change.

Question 24

What is an advantage of using the practice of echoing input?

A)The program is shorter.
B)Memory usage is lower.
C)There is less chance of syntax errors.
D)The user is more likely to catch input errors.

Question 25

The ___ dictate the order in which operations in the same statement are carried out.

A)sequence structures
C)decision points
B)named constants
D)order of operations

Question 26

A ____ dictionary is a list of every variable name used in a program.

A)naming
C)constant
B)string
D)data

Question 27

In the following statement, which operation is done third? answer = a + b + c * d / e - f

A)a+b
C)e-f
B)b+c
D)d/e

Question 28

Most modern programming languages are ____, meaning that you can arrange your lines of code as you see fit.

A)structured
C)formatted
B)columnar
D)free-form

Question 29

A(n) ____ statement stores the value of the right-hand side of the expression in the memory location of the left-hand side.

A)construct
C)equals
B)arithmetic
D)assignment

Question 30

A variable ____________________ is a statement that provides a data type and identifier for a variable.

Question 31

With a ____ structure, you perform an action or event, and then you perform the next action in order.

A)loop
C)selection
B)decision
D)sequence

Question 32

What operator has the lowest precedence?

A)+
C)*
B)/
D)=

Question 33

In the following statement, which arithmetic operation is performed first? answer = a + b + c * d / e - f

A)e-f
C)c*d
B)a+b
D)d/e

Question 34

What is an equivalent way to write the following statement? answer = a + b + c * d / e - f

A)answer = a+b+(c*d)/(e-f)
C)answer = a+b+(c*d/e-f)
B)answer = a+b+(c*d)/e-f
D)answer = a+b+c*(d/e)-f

Question 35

A ____________________ constant is enclosed within quotation marks.

Question 36

____________________ programs can accept data without human intervention.

Question 37

According to the rules of precedence, ____ has higher precedence than addition.

A)multiplication
C)the equals sign
B)subtraction
D)assignment

Question 38

Programmers refer to programs that contain meaningful names as ____.

A)external documentation
C)internally consistent
B)self-documenting
D)applications

Question 39

If an application contains only one method that executes, that method is called the ____________________ method.

Question 40

In the ____ structure, instructions repeat based on a decision.

A)sequence
C)loop
B)selection
D)flowchart

Question 41

Arithmetic operators have ____________________ associativity.

Question 42

In a(n) ____________________ structure, one of two branches of logic is followed based on a decision.

Question 43

A(n) ____________________ is a basic unit of programming logic.

Question 44

The ____________________ operator has the lowest precedence.

Question 45

Program comments are a type of ____________________ documentation.

Question 46

A(n) ____________________ is a message that asks the user for a response.

Question 47

A(n) ____________________ variable is not used for input or output.

Question 48

The equal sign is the ____________________ operator.

Question 49

An operand that can be used to the right of an operator is a(n) ____________________.

Question 50

Until a variable is initialized, it holds an unknown value referred to as ____________________.