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Subject:
Arrays for beginners
Name:
Ken Samuels
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Date:
Thursday, August 16, 2007
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79
Discussion (Terms and Conditions):
I am just learning Visual basic programming and have come across a problem dealing with parallel arrays that I have not been able to solve. I am given a table with the following values: Minimum points Maximum points Grade 0 299 F 300 349 D 350 399 C 400 449 B 450 500 A A.) Store the minimum points in a five element, one dimensional Integer array named points. Store the grades in a five element, one dimensional String array named grades. The arrays should be parallel arrays. B.) Code the Display Grade button's Click event procedure so that it searches the points array for the number of points entered by the user,and then displays the corresponding grade from the grade array. c.) Enter 455 in the points text box and then click the Display Grade button.A grade of "A" shouls appear in the interface. d.) Do the same with the number 210. A grade of "F" should appear in the interface. following is the code as I have it now but it only works part way.Any help would be greatly appreciated. Private Sub uiDisplayButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles uiDisplayButton.Click Dim points() As Integer = {0, 300, 350, 400, 450} Dim grades() As String = {"F", "D", "C", "B", "A"} Dim x As Integer = (points.Length - 1) Dim searchFor As Integer searchFor = Convert.ToInt16(Me.uiPointsTextBox.Text) 'search the array Do While x > -1 If searchFor >= points(x) Then Me.uiGradeLabel.Text = grades(x) End If x = x - 1 Loop End Sub End Class What am I not seeing? Thank you for your time.

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