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Chapter 7. Arrays > Summing the Elements of an Array
7.5. Summing the Elements of an Array
Often, the elements of an array represent a series of related values that are used in a calculation. For example, if the elements of an array represent students’ exam grades, the instructor might wish to total the elements of the array, then calculate the class average for the exam. Figure 7.3 sums the values contained in a 10-element integer array named values and displays the result in sumLabel.
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Show All 1 ' Fig. 7.3: SumArray.vb 2 ' Computing the sum of the elements in an array. 3 Public Class SumArray 4 ' use a loop to sum the elements in an array 5 Private Sub SumArray_Load(ByVal sender As System.Object, 6 ByVal e As System.EventArgs) Handles MyBase.Load 7 8 Dim values() As Integer = {85, 77, 91, 44, 65, 72, 99, 84, 95, 100} 9 Dim total As Integer = 0 10 11 ' sum the array element values 12 For i = 0 To values.GetUpperBound(0) 13 total += values(i) 14 Next 15 16 sumLabel.Text = Convert.ToString(total) 17 End Sub ' SumArray_Load 18 End Class ' SumArray |
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