Question 1

What are the rules for naming variables in Visual Basic? Providing examples of the good and the bad, discuss what impact good programming practice has on the naming of variables.

Accepted Answer

The name must begin with a letter or an underline symbol (_). The name can contain letters, numbers, or the underline symbol. It cannot contain spaces or other special characters. Reserved words in Visual Basic cannot be used for variable names; reserved words appear in blue in the code window. Good programming practice dictates that the variable names you use should reflect the actual values to be placed in the variable. That way, anyone reading the program code can easily understand the use of the variable. For example, a good variable name for a string variable that will contain an employee's last name would be strEmployeeLastName. Names you should not use include strXXX, strLN, strEmp, or strName. Each of these names is imprecise and potentially misleading. You should consider the people who will be reading your code when you name the variables in your program. Your goal must be to make the task of reading your code as clear and easy as possible.

Question 2

A(n) ____ Exception occurs when a calculation creates a value larger than one that can be processed by a procedure.

Accepted Answer

A)   Excessive input
B)   MaxSize
C)   Stack
D)   Overflow D

Question 3

A(n) ____________________ specifier is used to identify the number of positions to the right of the decimal point that should be returned when displaying numeric data.

Accepted Answer

precision

Question 4

A(n) ____________________ is a named grouping of program code.

Accepted Answer

The answer of A(n) ____________________ is a named grouping of...

Question 5

The memory allocation for the Char data type is ____ bytes.

Accepted Answer

A)   2
B)   4
C)   8
D)   16

Question 6

The dtm prefix is used to denote a(n) ____ data type.

Accepted Answer

A)   Boolean
B)   Char
C)   Single
D)   Date

Question 7

The ____ indicates that a statement is an assignment statement.

Accepted Answer

A)   keyword Set
B)   ampersand (&) 
C)   equal sign (=) 
D)   keyword Assign

Question 8

When using ____ division (\), any remainder amount is dropped or truncated.

Accepted Answer

A)   modular
B)   integer
C)   linear
D)   decimal

Question 9

Does entering Dim intValue = 1 provide an error in Visual Basic 2015? Explain why or why not, and the significance of this.

Accepted Answer

The answer of Does entering Dim intValue = 1 provide...

Question 10

A numeric data type must be used in arithmetic operations.

Accepted Answer

A) True 
 B)False

Question 11

A(n) ____________________ will contain a permanent value throughout the execution of the program.

Accepted Answer

The answer of A(n) ____________________ will contain a permanent value...

Question 12

String data types can be used in arithmetic operations.

Accepted Answer

A) True 
 B)False

Question 13

An Overflow Exception will occur if the user enters a value greater than the maximum value that can be processed by the statement.

Accepted Answer

A) True 
 B)False

Question 14

The CancelButton property of the Windows Form object allows you to specify which button is activated when the CTRL key on the keyboard is pressed.

Accepted Answer

A) True 
 B)False

Question 15

A local variable is a variable that can only be accessed in the region in which it was defined.

Accepted Answer

A) True 
 B)False

Question 16

A prefix of ____ is used to denote that a variable has been defined as a Boolean data type.

Accepted Answer

A)   tru
B)   tfl
C)   bln
D)   trf

Question 17

The ____________________ property of a TextBox object controls the alignment of the text content.

Accepted Answer

The answer of The ____________________ property of a TextBox object...

Question 18

A(n) ____________________ is a procedure that returns a value when it is called.

Accepted Answer

The answer of A(n) ____________________ is a procedure that returns...

Question 19

Match between columns
                        Premises: A procedure is a prewritten set of code that can be called by a statement in this

Accepted Answer

The Answer of procedure and constant and literal and local is...

Question 20

A(n) ____________________ procedure does not return a value.

Accepted Answer

The answer of A(n) ____________________ procedure does not return a...

Exam 4: Variables and Arithmetic Operations

What are the rules for naming variables in Visual Basic? Providing examples of the good and the bad, discuss what impact good programming practice has on the naming of variables.

A(n) ____ Exception occurs when a calculation creates a value larger than one that can be processed by a procedure.

A(n) ____________________ specifier is used to identify the number of positions to the right of the decimal point that should be returned when displaying numeric data.

A(n) ____________________ is a named grouping of program code.

The memory allocation for the Char data type is ____ bytes.

The dtm prefix is used to denote a(n) ____ data type.

The ____ indicates that a statement is an assignment statement.

When using ____ division (\) , any remainder amount is dropped or truncated.

Does entering Dim intValue = 1 provide an error in Visual Basic 2015? Explain why or why not, and the significance of this.

A numeric data type must be used in arithmetic operations.

A(n) ____________________ will contain a permanent value throughout the execution of the program.

String data types can be used in arithmetic operations.

An Overflow Exception will occur if the user enters a value greater than the maximum value that can be processed by the statement.

The CancelButton property of the Windows Form object allows you to specify which button is activated when the CTRL key on the keyboard is pressed.

A local variable is a variable that can only be accessed in the region in which it was defined.

A prefix of ____ is used to denote that a variable has been defined as a Boolean data type.

The ____________________ property of a TextBox object controls the alignment of the text content.

A(n) ____________________ is a procedure that returns a value when it is called.

Identify the letter of the choice that best matches the phrase or definition.

A(n) ____________________ procedure does not return a value.