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VB.Net program to swap adjacent elements of a one-dimensional array

Here, we are going to learn how to swap adjacent elements of a one-dimensional array in VB.Net?
Submitted by Nidhi, on December 10, 2020 [Last updated : March 06, 2023]

Swap adjacent elements of a one-dimensional array

Here, we will create an array and read elements from the user then we swap adjacent elements of the array. After that print the updated array on the console screen.

Program/Source Code:

The source code to swap adjacent elements of a one-dimensional array is given below. The given program is compiled and executed successfully.

VB.Net code to swap adjacent elements of a one-dimensional array

'VB.Net program to swap adjacent elements of a one-dimensional array

Module Module1

    Sub ReadArray(ByVal arr() As Integer)
        For i = 0 To 5 Step 1
            Console.Write("Element[{0}]: ", i)
            arr(i) = Integer.Parse(Console.ReadLine())
        Next
    End Sub

    Sub PrintArray(ByVal arr() As Integer)
        For i = 0 To 5 Step 1
            Console.Write("{0} ", arr(i))
        Next
        Console.WriteLine()
    End Sub


    Sub Main()
        Dim arr As Integer() = New Integer(6) {}
        Dim temp As Integer = 0

        Console.WriteLine("Enter array elements: ")
        ReadArray(arr)

        'swap adjacent elements
        For i = 0 To 5 Step 2
            temp = arr(i)
            arr(i) = arr(i + 1)
            arr(i + 1) = temp
        Next

        Console.WriteLine("Array elements after swapping adjacent elements:")
        PrintArray(arr)
    End Sub
End Module

Output

Enter array elements:
Element[0]: 10
Element[1]: 20
Element[2]: 30
Element[3]: 40
Element[4]: 50
Element[5]: 60
Array elements after swapping adjacent elements:
20 10 40 30 60 50
Press any key to continue . . .

Explanation

In the above program, we created a module Module1 that contains a function Main(). In the Main() we created an array arr and read the elements of the array and then swapped the adjacent elements of the array then print the console screen.

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