Deck 6: Where Can I Store This Variables and Constants

Question 1

It is customary to enter the variable declaration statements at the end of the procedure.

Answer 1

False

Question 2

When formatting characters, you can use either an uppercase letter or a lowercase letter as the format specifier.

Answer 2

True

Question 3

Programmers refer to the length of time a variable remains in memory as its ____.

A) size
C) usefulness
B) depth
D) lifetime

Answer 3

D

Question 4

When you start an application, each program instruction is placed in a ____, where it awaits processing.

A) hard core
C) register
B) memory location
D) processor

Question 5

Every numeric data type in Visual Basic has a TryText method that can be used to convert text to that numeric data type.

Question 6

The basic syntax of the TryParse method is ____.

A) TryParse(text, variable) dataType
B) TryParse(text, variable)
C) dataType.TryParse(text, variable)
D) dataType TryParse text, variable

Question 7

The ____ memory of a computer is composed of memory locations.

A) external
C) internal
B) hidden
D) special

Question 8

Because control names typically are more concise than variable names, using control names in an expression makes the expression much shorter and easier to understand.

Question 9

To distinguish the named constants from the variables in a program, many programmers use a modified form of Hungarian notation for the named constant names.

Question 10

A ____ is a memory location whose value cannot change while the application is running.

A) named constant
C) predefined variable
B) variable
D) touched variable

Question 11

The desk-check table for a program will contain two columns for each variable.

Question 12

The TryParse method parses the text, which means it looks at each character in the text, to determine whether the text can be converted to a number of the specified data type.

Question 13

The formatString argument in the ToString method must take the form "xAA", where AA is the format specifier and x is the precision specifier.

Question 14

You use a problem's solution-in other words, its output, processing, and input information and its algorithm-to determine the variables to use when coding an application.

Question 15

____ refers to the area where a variable is recognized in an application's code.

A) Scope
C) Blocking
B) Field of view
D) Object control

Question 16

You reserve a memory location using a Visual Basic instruction that assigns both a name and data type to the memory location.

Question 17

When a named constant's value needs to be changed, the programmer must change its value in its declaration statement.

Question 18

Memory locations are called ____ because their contents can change (vary) as the program is running.

A) variables
C) constants
B) invariables
D) parameters

Question 19

In addition to reserving (or declaring) variables in a program, you also can declare named constants.

Question 20

To declare a variable in an event procedure, where most variables are declared, you use the Visual Basic ____ statement.

A) Sub
C) Create
B) New
D) Dim

Question 21

The format specifier ____ does not include a dollar sign, and negative values are preceded by a minus sign.

A) C or c
C) F or f
B) N or n
D) P or p

Question 22

Specifying the number of decimal places and the special characters to display in a number is called ____.

A) describing
C) formatting
B) controlling
D) highlighting

Question 23

You create a named constant using the ____ statement.

A) NamedC
C) NConst
B) Const
D) NoAlter

Question 24

You can format a number using the syntax ____.

A) variable.ToString(formatString)
B) formatString.ToString(variable)
C) ToString.variable(formatString)
D) variable.formatString(ToString)

Question 25

A ____ is text that is enclosed in double quotation marks.

A) word
C) word array
B) character list
D) string