How to sort VB.net array in ASC

Question

Firstly I have to admit I'am beginner in VB.net. I have this code that have to sort array in ascending order. Firstly it will request how much array size and then insert a data. But I face problem to make it working .Can anyone help me for this? Below is my code :

Module Module1
    Sub Main()

        Dim A(20) As Integer
        Dim num, i, j, k, arr, temp As Integer

        Console.Write("enter size num:")
        Dim add = Console.ReadLine

        If Integer.TryParse(add, num) Then
            'Console.WriteLine("valid. num = " & num)
            For i = 0 To num - 1
                Console.Write("enter num:")
                A(i) = Console.ReadLine

            Next i

            For i = 0 To num - 1
                For j = i + 1 To num - j
                    If A(i) > A(j) Then
                        temp = A(i)
                        A(i) = A(j)
                        A(j) = temp
                    End If
                Next j
                Console.Write(A(i))
            Next i
        Else
            Console.WriteLine("Invalid.Data is not number")
        End If
        Console.ReadLine()
    End Sub
End Module

Thanks and any help will be greatly appreciate.

" I face problem to make it working" what was the problem? However, it's simple as Array.Sort(A) — Tim Schmelter
– Tim Schmelter, Commented Nov 27, 2015 at 8:54
@TimSchmelter I still can't make it sorting in ascending order . When I run the code ,it will show the list of array but not in ascending order — art
– art, Commented Nov 27, 2015 at 8:56
Please show the new code containing Array.Sort(A) that still doesn't work. — Graham Asher
– Graham Asher, Commented Nov 27, 2015 at 9:14

Brian Hooper · Accepted Answer · 2015-11-27 09:07:03Z

2

The immediate cause of your problem is that your

Console.Write(A(i))

is being invoked before you have completed the sorting operation. A secondary problem is that you are not validating the entered numbers, and you really ought to specify Option Strict On at the top of the code and clean up the compilation errors that result.

If you are writing this as an exercise, that's fine but for production purposes you should prefer Tim Schmelter's method.

answered Nov 27, 2015 at 9:07

Brian Hooper

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1 Comment

David Wilson Over a year ago

Ha! Yes I should have seen that.

Tim Schmelter · Accepted Answer · 2015-11-27 08:56:23Z

0

You haven't mentioned your problem. However, in general sorting an Int32() is very easy, you can use Array.Sort:

Array.Sort(A) ' finished '

answered Nov 27, 2015 at 8:56

Tim Schmelter

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2 Comments

art Over a year ago

Is it possible I can sorting the same like my code given ?Btw thanks

Tim Schmelter Over a year ago

@art: i have currently not the time to investigate your algorithm further. But in productiuon code use Array.Sort, it's much clearer, safer and more efficient.

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