Question

How to swap a characters in a string by index with VB.NET

Answer 1

Imports System

Public Class Program
    Public Shared Function swap(ByVal s As String, ByVal i As Integer, ByVal j As Integer) As String
        Dim charArray As Char() = s.ToCharArray()
		
        Dim temp As Char = charArray(i)
        charArray(i) = charArray(j)
        charArray(j) = temp
		
        Return New String(charArray)
    End Function

    Public Shared Sub Main()
        Dim s As String = "abcd"
		
        s = swap(s, 0, 2)
		
        Console.Write(s)
    End Sub
End Class

  

  
  
' run:
' 
' cbad
'

 

70+ SQL courses for beginners and professionals