What is the output of the following program when the button is clicked on?
Private Sub btnDisplay_Click(...) Handles btnDisplay.Click
Dim result As Double
Dim number(4) As Double
FillArray(number)
result = SumArray(number)
txtBox.Text = CStr(result)
End Sub
Sub FillArray(ByRef anyArray As Double)
Dim temp As String = IO.File.ReadAllLines("Data.txt")
For i As Integer = 0 To 4
anyArray(i) = CDbl(temp(i))
Next
End Sub
Function SumArray(anyArray As Double) As Double
Dim total As Double
total = 0
For i As Integer = 0 To 4 Step 2
total += anyArray(i)
Next
Return total
End Function
Assume the five rows of the file Data.txt contain the following entries: 1, 3, 5, 7, 9
A) 0
B) 25
C) 15
D) None of the above

Question

What is the output of the following program when the button is clicked on? 
Private Sub btnDisplay_Click(...) Handles btnDisplay.Click 
Dim result As Double 
Dim number(4) As Double 
FillArray(number) 
result = SumArray(number) 
txtBox.Text = CStr(result) 
End Sub 
Sub FillArray(ByRef anyArray As Double) 
Dim temp As String = IO.File.ReadAllLines("Data.txt") 
For i As Integer = 0 To 4 
anyArray(i) = CDbl(temp(i)) 
Next 
End Sub 
Function SumArray(anyArray As Double) As Double 
Dim total As Double
total = 0 
For i As Integer = 0 To 4 Step 2 
total += anyArray(i) 
Next 
Return total
 End Function 
Assume the five rows of the file Data.txt contain the following entries: 1, 3, 5, 7, 9
A) 0
B) 25
C) 15
D) None of the above

Quizplus · Accepted Answer

When the button is clicked, the FillArray function reads the contents of the file "Data.txt" and stores them in the array number. The first five numbers in the file are 1, 3, 5, 7, and 9, respectively. The SumArray function adds up every other element in the array starting with the first, so it adds 1 + 5 + 9 = 15. This total is then converted to a string and displayed in the txtBox textbox. Therefore, the output would be 15.

What Is the Output of the Following Program When the Button