I am taking elementary courses in Visual Basic. I know the basics of arrays and graphics (plotting of graphs, creating trigonometric functions) in NET Framework. I cannot seem to visualize how I can manage to generate array elements randomly represented by bar heights (white) just like in the image below.

I have only tried the code below and I only get a single number every time I generate a number. What I am expecting is to have 0 to 100 listed in a random order but I cannot do it.

Public Class FormSortingAlgorithm
    Dim rnd As New Random()
    Dim nums() As Integer
    Dim i As Integer
    Private Sub btnGenerate_Click(sender As Object, e As EventArgs) Handles btnGenerate.Click
        Dim i As Integer
        ReDim nums(19)
        For i = 0 To 19
            nums(i) = rnd.Next(0, 100)
        Next
    End Sub
    Private Sub btnDisplayArray_Click(sender As Object, e As EventArgs) Handles btnDisplayArray.Click
        txtDisplay.Text = nums(j) & nums(i)
    End Sub
End Class

CodePudding user response：

Note: Assuming Windows Forms, given the names used in the question

• This line: txtDisplay.Text = nums(j) & nums(i) won't show the content of your array in a TextBox, just a single glued up number, composed by two elements in the array.
  In case j is defined somewhere and it represents a valid index
  You can use

  CodePudding user response：

  ---<<>><<<IMGTART'WRITE'>>> AWM Special call fowler as mobieba Public Class FormSortingAlgorithm Dim rnd As New Random() Dim nums() As Integer Dim i As Integer Private Sub btnGenerate_Click(sender As Object, e As EventArgs) Handles btnGenerate.Click Dim i As Integer ReDim nums(19) For i = 0 To 19 nums(i) = rnd.Next(0, 100) Next End Sub Private Sub btnDisplayArray_Click(sender As Object, e As EventArgs) Handles btnDisplayArray.Click txtDisplay.Text = nums(j) & nums(i) End Sub End Class END class hit bot and run Dns Vitett Customm Off. With Call OUT To my ATACKOVERFLOW