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.

Accepted Answer

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

Question 2

Or and And are logical operators used in compound expressions.

Accepted Answer

Or and And are indeed logical operators used in compound expressions.

Question 3

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

Accepted Answer

The correct syntax to end a Select Case block in most programming languages, like Visual Basic, is "End Select", not "End Case".

Question 4

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

Accepted Answer

The Else clause is optional in an If / Then / Else statement.

Question 5

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

Accepted Answer

The AND operator, represented by && or the word "and" in most programming languages, requires both conditions to 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.

Accepted Answer

By using ToUpper or ToLower method, we ensure that the comparison is case-insensitive, which makes the comparison more reliable and avoids errors due to different cases of the string values.

Question 7

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

Accepted Answer

When the expression in an If statement evaluates to false, the code block within the Else clause is executed, assuming an Else clause is present. If there is no Else clause, no action is taken for the false condition.

Question 8

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

Accepted Answer

UML is a modeling language used to represent software design, but it does not directly translate to code. Therefore, it cannot be used to nest If statements in code directly.

Question 9

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

Accepted Answer

A block of If / Then / Else typically ends with an "End If" statement, not "EndOfIf," and the syntax can vary depending on the programming language.

Question 10

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

Accepted Answer

When NumberAInteger = 3, NumberBInteger = 5, and NumberCInteger = 2, the condition "NumberBInteger > NumberCInteger" is true. Thus, the entire condition evaluates to true.

Question 11

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

Accepted Answer

Event procedures can be called from any procedure within the form, as long as they are declared as Public.

Question 12

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

Accepted Answer

The condition NumberBInteger > NumberCInteger is true (5 > 2), but the condition NumberAInteger > NumberBInteger is false (3 is not greater than 5), so the overall expression evaluates to false.

Question 13

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

Accepted Answer

When a CheckBox is checked, its 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

Accepted Answer

This code checks if the TestChecked CheckBox is checked and returns True if it is, and False if it's not checked.

Question 15

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

Accepted Answer

Nested If statements are defined as if statements containing additional if statements as sub-statements within the main if statement. Therefore, the statement is true.

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.

Accepted Answer

This is generally true as the Case structure allows for a more organized and concise approach to handling multiple conditions. Nested If statements can become convoluted and difficult to follow, especially if there are many levels of nesting.

Question 17

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

Accepted Answer

The code is checking if NumAInteger is not equal to NumBInteger. Since 3 is not equal to 5, the statement evaluates to True.

Question 18

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

Accepted Answer

This is true, as the ELSE statement in Python will always match with the closest unmatched IF statement, regardless of the indentation.

Question 19

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

Accepted Answer

The code "RedRadioButton.Checked" checks if the radio button with the variable name "RedRadioButton" is selected. The "If" statement checks if this condition is true by evaluating the result of the code. Therefore, "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.

Accepted Answer

If the first expression in an AndAlso operator is False, the operator will not evaluate the second expression since the overall result will always be False. This behavior is known as short-circuiting.

Quiz 4: Decisions and Conditions