Deck 4: Decisions and Conditions

Question 1

When a program executes a Call statement and the called procedure completes executing its code,program execution resumes on the statement following the call.

Answer 1

True

Question 2

Or and And are logical operators used in compound expressions.

Answer 2

True

Question 3

When using Select Case,the group of statements must end with End Case.

Answer 3

False

Question 4

In an If / Then / Else statement,the Else clause is optional.

Question 5

The AND operator requires that both conditions be True for the compound expression to be True.

Question 6

It's a good idea to always use the ToUpper or ToLower method on the Text property of text boxes,whenever comparing string values.

Question 7

In an If statement,when the expression is false,only the Else clause,if present,is executed.

Question 8

The Unified Modeling Language (UML)can be used to nest If statements in code.

Question 9

A block of If / Then / Else must begin with an If statement and end with an EndOfIf statement.

Question 10

The code: If NumberAInteger > NumberBInteger OR NumberBInteger > NumberCInteger Then,evaluates True when NumberAInteger = 3,NumberBInteger = 5,and NumberCInteger = 2.

Question 11

Event procedures may be called from any procedure within the form.

Question 12

The code: If NumberAInteger > NumberBInteger AND NumberBInteger > NumberCInteger Then,evaluates True when NumberAInteger = 3,NumberBInteger = 5,and NumberCInteger = 2.

Question 13

When a CheckBox is checked,the Checked property will return a value of True.

Question 14

A CheckBox may be tested to determine if it is checked by using the following code:
If TestChecked.Checked Then

Question 15

If statements containing additional Ifs are said to be nested If statements.

Question 16

Usually,the code written for a Case structure is simpler and easier to read than if the same code was written with nested Ifs.

Question 17

The code: If NumAInteger <> NumBInteger Then,evaluates True when NumAInteger = 3 and NumBInteger = 5.

Question 18

Each ELSE will be matched with the last unmatched IF,regardless of indentation.

Question 19

"If RedRadioButton.Checked Then" is valid code for checking if a radio button is selected.

Question 20

AndAlso is a logical operator that will "short-circuit" if the first expression is False.

Question 21

Nested Ifs are allowed,_______.

A)But you are limited to only 4 levels of Ifs
B)But each If must have an End If
C)Can be difficult to follow if they are nested too deeply
D)Both answers b and c are correct.

Question 22

When comparing strings,which one of the following strings is less than the others,based on the ANSI code?

A)ONETWOTHREE
B)onetwothree
C)OneTwoThree
D)1Two3

Question 23

Which of the following is NOT a logical operator?

A)If
B)Or
C)And
D)Not

Question 24

With the logical operator _______,if the first expression is True,the second expression will not be evaluated.

A)And
B)Or
C)AndAlso
D)OrElse

Question 25

A line of code that is marked as a breakpoint will have a large red dot in the left margin and the code will be highlighted in red.

Question 26

In an If statement,when the expression is true,_______.

A)Only the Else clause is executed
B)Only the ElseIf clause is executed
C)Only the End If statement is executed
D)Only the Then clause is executed

Question 27

With the logical operator _______,both expressions must be true for the entire expression to evaluate True.

A)And
B)Or
C)AndAlso
D)OrElse

Question 28

Which of the following is a comparison operator?

A)And
B)>
C)+
D)&

Question 29

The Show method of a MessageBox returns a _______ object that you can check to see which button the user clicked.

A)Show
B)ShowMe
C)Selected
D)DialogResult

Question 30

It is not necessary to use the Call keyword when you want to call another event procedure.Simply list the object name,an underscore,the event,and the parentheses.If the procedure that you are calling requires arguments,place the arguments within the parentheses.

Question 31

An If contained within another If statement is _______.

A)A nested If
B)A compound expression
C)An embedded contradiction
D)Impossible to do in VB

Question 32

Once a Visual Basic event procedure is executing,there is no way of stopping execution before an error causes it to stop.

Question 33

Which of the following is correct code for determining if a checkbox is checked?

A)If Senior.Checkbox = True Then
B)If SeniorCheckBox.Checked = True Then
C)If SeniorCheckBox.Checked Then
D)Both answers B and C are correct.

Question 34

To set a breakpoint,place the mouse pointer in the gray margin indicator area at the left edge of the Editor window and click.

Question 35

Which of the following statements does NOT apply to the Case structure?

A)It can be used instead of nested Ifs.
B)It can be used for testing numeric and string values.
C)It must begin with Select Case and it must end with End Case.
D)Case Else is optional.

Question 36

When a project is running and it reaches a breakpoint in the code,the program will halt,display the line with the breakpoint and go into debug time.

Question 37

______________ will be the result of: MessageText.Text = MessageText.Text.ToUpper()when the value of MessageText.Text is "Visual Basic is fun!".

A)Visual Basic is fun!
B)VISUAL BASIC IS FUN!
C)visual basic is fun!
D)VisualBasicisfun!

Question 38

What will display in MessageLabel when the following statements are executed? Assume that CountInteger = 10. MessageString = "Visual Basic is fun"
IF CountInteger <= 10 Then
MessageLabel.Text = MessageString.ToLower()
ELSEIF CountInteger > 20 Then
MessageLabel.Text = MessageString.ToUpper()
ELSE
MessageLabel.Text = MessageString
END IF

A)VISUAL BASIC IS FUN
B)Visual Basic Is Fun
C)visual basic is fun
D)syntax error

Question 39

Use the Visual Studio intrinsic constant,_______,to determine line endings.

A)VB.Multiline
B)Environment.NewLine
C)VS.NewLine
D)VB.NewLine

Question 40

Checking to verify that appropriate values have been entered for a text box is called _______.

A)verification
B)validation
C)a MessageBox
D)a watch expression

Question 41

What are the six comparison operators? Give an example using each one.
(Student's answers may vary. )
Operator Example
> CorrectInteger > 75
< NameText.Text.ToUpper()< NameString.ToUpper()
= PasswordText.Text.ToUpper()= "SECRET"
<> GraduateRadioButton.Checked <> True
>= PriceDecimal >= PriceTotalDecimal
<= GradeDecimal <= TotalGradeDecimal

Question 42

Use the Case structure and convert the following If statement so that it checks the string as an uppercase value.
If StateNameString = "California" Then
AdjustedPriceDecimal = PriceDecimal+(PriceDecimal * TaxDecimal)
Else
AdjustedPriceDecimal = PriceDecimal
End If

Question 43

You can write a set of instructions in an event procedure and then ________ the event procedure from any other procedure.

A)declare the variables in
B)force a break in
C)use Option Explicit in
D)call

Question 44

The Select Case statement must end with __________.

A)End Select
B)End Case
C)Select End
D)Case End

Question 45

What is the value of MysteryInteger when the following statements are executed? Const NUMBER_Integer As Integer = 10
Select Case NUMBER_Integer
Case 1,3,5,7,9
MysteryInteger = NUMBER_Integer
Case 2,4,6,8,10
MysteryInteger = NUMBER_Integer + 1 * 2
Case Else
MysteryInteger = NUMBER_Integer * 2 + 1
End Select

A)10
B)12
C)21
D)22

Question 46

The _______ displays all objects and variables that are within scope during a break in program execution.

A)Locals window
B)Procedure Box
C)Autos window
D)Step Into

Question 47

_______ is an optional clause available for the Case Structure when no match is found in any of the Case statements.

A)Case Else
B)Default
C)ElseIf
D)Else Case

Question 48

The Select Case statement is a code structure used for ________.

A)repetition
B)selection
C)sequence
D)none of these

Question 49

The Debug.WriteLine method will display its results in the ________ window.

A)Debug
B)Immediate
C)WriteLine
D)Breakpoint

Question 50

You can use _______________ as your project executes in order to view the values of variables and control contents that are referenced in the current statement and a few statements on either side of the current statement.

A)the Locals window
B)the Procedure Box
C)the Autos window
D)Step Into

Question 51

When you share an event procedure with radio buttons,Visual Basic creates and passes a system variable object named,_______,which has a name property containing the name of the selected button.

A)sender
B)integer
C)source
D)number