Question 1

Write the Visual Basic statement that uses the Contains method to determine whether the strEmployeeCode variable contains the string "NC" (entered in uppercase). Assign the method's return value to a Boolean variable named blnIsNC .

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Question 2

Write the Visual Basic statement that inserts "RVI" at the beginning of the string in the following strPolicyNum and assigns it to the strPolicyNum variable. 
strPolicyNum = "576892"

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Question 3

Case-Based Critical Thinking Questions Case 1 - Human Resources Application
An application used by the Human Resources (HR) department needs to be improved. You need to use various string manipulation properties and methods to ensure all data entered by a user is accurate and stored correctly.
The HR department has decided to change the Finance department number from 04 to 09. Which of the following statements correctly changes the contents of the strEmpCode ?
A) strEmpCode = strEmpCode.Replace("04", "09")
B) strEmpCode = strEmpCode.Replace("09", "04")
C) strEmpCode = strEmpCode.Remove(0, 2) strEmpCode = strEmpCode.Insert(1, "09")
D) strEmpCode = strEmpCode.Remove(1, 2) strEmpCode = strEmpCode.Insert(1, "04")

Accepted Answer

The correct syntax to replace "04" with "09" in the string is strEmpCode.Replace("04", "09").

Question 4

Describe four of the six menu standards that should be followed when including a menu in an application.

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Question 5

The txtGrade control contains the string "95%". Write the Visual Basic statement to remove the percent sign from the txtGrade control as well as convert the contents of the control to a Decimal number. Assign the result to the decGrade variable. Use the TrimEnd method.

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Question 6

What is the difference between a menu item's access key and shortcut key?

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Question 7

Problems - Correcting Logic and Code Errors 
The following sample of code contains errors. Rewrite the incorrect statements to correct all errors. 
Private Sub btnDisplay_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnDisplay.Click 
' displays type of vehicle for the code entered by user 
Const strLENGTH_MSG As String = "The code must contain four characters." 
Const strTYPE_MSG As String = "The last character in the code must be C, T, or V." 
Dim strCode As String 
Dim strLastChar As String 
strCode = txtCode.Text.ToLower 
' determine whether code contains exactly 4 characters 
If strCode.Chars 
lblType.Text = String.Empty 
MessageBox.Show(strLENGTH_MSG, "Code", 
MessageBoxButtons.OK, 
MessageBoxIcon.Information) 
Else 
' determine whether the last character is valid 
strLastChar = strCode.Substring(4) 
Select Case strCode 
Case "C" 
lblType.Text = "Car" 
Case "T" 
lblType.Text = "Truck" 
Case "V" 
lblType.Text = "Van" 
Case Else 
lblType.Text = String.Empty 
MessageBox.Show(strType_MSG, "Type", 
MessageBoxButtons.OK, 
MessageBoxIcon.Information) 
End If 
End If 
End Sub

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Question 8

Write the condition that evaluates to True when a dash (-) appears anywhere within the strItemNum variable.

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Question 9

Case-Based Critical Thinking Questions Case 1 - Human Resources Application
An application used by the Human Resources (HR) department needs to be improved. You need to use various string manipulation properties and methods to ensure all data entered by a user is accurate and stored correctly.
Each employee is assigned an employee code, such as F01234, which is stored in the strEmpCode variable. The first character is a letter for employment status (F for Full-time, P for Part-time). The next two characters are numbers representing the employee's department number. The last three characters are numbers representing a unique value for each individual employee. Which of the following statements assigns the employee's department to the strDept variable?
A) strDept = strEmpCode.Substring(0, 1)
B) strDept = strEmpCode.Substring(1)
C) strDept = strEmpCode.Substring(0, 2)
D) strDept = strEmpCode.Substring(1, 2)

Accepted Answer

The department number is represented by the second and third characters in the employee code, so using `strEmpCode.Substring(1, 2)` correctly extracts these characters.

Question 10

The strSerialNum variable contains the string "DRY259614". Write the Visual Basic statement that assigns the string "259614" from the strSerialNum variable to the strProductCode variable.

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The answer of The strSerialNum variable contains the string "DRY259614"....

Question 11

Case-Based Critical Thinking Questions Case 1 - Human Resources Application
An application used by the Human Resources (HR) department needs to be improved. You need to use various string manipulation properties and methods to ensure all data entered by a user is accurate and stored correctly.
The application needs to process benefits for full-time employees only. Which of the following statements determines whether the strEmpCode variable contains an employee code for a full-time employee?
A) If strEmpCode Like "[A-Z]#####"
B) If strEmpCode.ToUpper Like "F####"
C) If strEmpCode Like "F*"
D) If strEmpCode Like "!F*"

Accepted Answer

Option C uses the wildcard character (*) to match any character(s) coming after the "F" in the employee code, indicating that the code belongs to a full-time employee. Option A checks for any uppercase letter followed by five digits, while option B checks for an uppercase "F" followed by four digits. Option D, using the negation operator (!), checks for any employee code that does NOT start with "F", which does not meet the requirement of processing benefits for full-time employees only.

Question 12

The strPhone variable contains a 10-digit phone number. If the string stored in the strPhone variable begins with the "336" area code, display the phone number in the lblPhone control's Text property. Use the StartsWith method.

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Question 13

Problems - Correcting Logic and Code Errors 
The following sample of code contains errors. Rewrite the incorrect statements to correct all errors. 
Private Sub btnDisplay_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnDisplay.Click 
' displays a pay rate based on an employee's code 
' Full Time employee pay rate is 11.50. Part Time 
' employee pay rate for those working more than 30 hours 
' is 10.50, otherwise it is 9.50 
Dim strEmpCode As String 
Dim decPayRate As Integer 
strCode = txtEmpCode.Text.Snip 
' validate the employee code 
If strEmpCode = "FT##" Then 
decPayRate = 11.50 
ElseIf strEmpCode Like "PT30##" Then 
decPayRate = 9.50 
Else 
decPayRate = 10.50 
End If 
' display pay rate 
lblPayRate.Text = decPayRate.ToString("N2") 
End Sub

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Question 14

Write a Visual Basic statement that removes the last four digits of the credit card number and assigns it to the strCCLastFour variable. 
strCCNum = "4456778996352852"

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Question 15

Write a Visual Basic statement that will access each character in the strNumber variable to determine if the variable contains a comma and then removes any comma that is found.

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Question 16

Write the Visual Basic statements needed to format decNetPay with two decimal places, pad the formatted variable with asterisks until its length is 12, and then insert a dollar sign ($) as the first character. The result is assigned to the strNetPayFormat variable.

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Question 17

The strCityState variable contains a string that ends with a two-digit state abbreviation. Write the statements that determine whether the string stored in the strCityState variable ends with "NY". If it does, assign the string "New York order" to the lblState control's Text property. Use the EndsWith method.

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Question 18

The strCityState variable contains the string "AtlantaGA". Write the Visual Basic statements that assign the string "Atlanta" from the strCityState variable to the strCity variable, and assign the string "GA" to the strState variable.

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Question 19

Write the Visual Basic statement to assign the number of characters in the txtSSN control's Text property to the intSSNNumChar variable.

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Question 20

Write the condition that evaluates to True when the string stored in the strCode variable begins with "HFS", followed by two uppercase letters, followed by five numbers.

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