Problems - Correcting Logic and Code Errors

question 36

Essay

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
' display the contents of the students.txt file
' declare variables
Dim inFile As IO.StreamWriter
Dim strStudent As String
' clear previous students from the Students box
lblStudents.Text = String.Empty
' determine whether the file exists
If IO.Exists("students.txt") = True Then
' open the file for input
inFile = IO.File.ReadText("students.txt")
' process loop instructions until end of file
Do Until inFile.Peek -1
' read a student line
strStudent = inFile.ReadLine
' display the student
lblStudents.Text = lblStudents.Text &
strStudent & ControlChars.NewLine
Loop
' close the file
Me.Close()
Else
MessageBox.Show("File not found","Students",
MessageBoxButtons.OK,
MessageBoxIcon.Information)
End If
End Sub

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Definitions:

Explicit Cost

The direct, out-of-pocket payment made by businesses for the use of resources.

Graphic Artist

A professional who creates visual content to communicate messages through digital and printed mediums.

Economic Profit

The difference between total revenues and total costs, including both explicit and implicit costs, measuring the true profitability of an enterprise.

Accounting Profit

The difference between a firm's total revenue and its explicit costs, often reported in the financial statements.