MIC 110
Quiz 4
Name: ____________________________
Write down your name in block letters in the upper-right corner of this page.
1.
Assume there is no syntax error, e.g. intRuner1 instead of intRun1. Circle around the error, and correct the error or insert a missing code in the following codes (1 point). Focus on the user-defined procedure.
Then explain why ( 19 points ).
Private Sub btnActivate_Click ( . . . )
Dim intRun1, intRun2, intTotalRuns As Integer
intRun1 = 5
intRun2 = 7
AddRuns (intRun1, intRun2, intTotalRuns)
MsgBox (intTotalRuns.ToString)
End Sub
Private Sub AddRuns ( ByVal intNum1 As Integer , ByVal intNum2 As Integer , ByVal intTotalNums As Integer )
intTotalNums = intNum1 + intNum2
End Sub
Explanation:
2.
Assume there is no syntax error, e.g. intRuner1 instead of intRun1. Circle around the error, and correct the error or insert a missing code in the following codes (1 point). Focus on the user-defined procedure.
Then explain why ( 19 points ).
Private Sub btnActivate_Click ( . . . )
Dim intRun1, intRun2 As Integer
Dim sngTotalRuns As Single
intRun1 = 10
intRun2 = 2
sngTotalRuns = DivideRuns (intRun1, intRun2)
MsgBox (sngTotalRuns.ToString )
End Sub
Private Function DivideRuns ( ByVal intNum1 As Integer , ByVal intNum2 As Integer ) As Single
Dim sngTotalRuns As Single
sngTotalRuns = ( intNum1 / intNum2 )
End Function
Explanation:

3.
Determine the value of intTotal displayed in the message box once the following codes are executed ( 10 points ). What will be the number iterations of the loop (the number of times the loop will execute the codes inside of the loop)? Explain ( 10 points ).
Dim intCounter As Integer
Dim intTotal As Integer = 0
For intCounter = 1 To 5 Step 2
intTotal = intTotal + 10
Next intCounter
MsgBox(intTotal.ToString)
4.
Determine the value of intTotal displayed in the message box once the following codes are executed ( 10 points ). What will be the number iterations of the loop (the number of times the loop will execute the codes inside of the loop)? Explain ( 10 points ).
Dim intCounter As Integer = 0
Dim intTotal As Integer = 0
Do While intCounter < 5
intCounter = intCounter + 2
intTotal = intTotal + 10
Loop
MsgBox(intTotal.ToString)
5.
Write a user-defined (sub) procedure or function that returns an average temperature of five cities (each city reports one temperature). Your codes should read in the temperatures by using the InputBox function within a loop ( 20 points ).