Question

How to multiply two integers represented as strings and return the result also as a string in VB.NET

Answer 1

Imports System
Imports System.Numerics

Class Program
    Private Shared Function MultiplyStrings(ByVal num1 As String, ByVal num2 As String) As String
        Dim n1 As BigInteger = BigInteger.Parse(num1)
        Dim n2 As BigInteger = BigInteger.Parse(num2)
        Dim result As BigInteger = n1 * n2
		
        Return result.ToString()
    End Function

    Public Shared Sub Main()
        Dim num1 As String = "123"
        Dim num2 As String = "456"
		
        Console.WriteLine("Result: " & MultiplyStrings(num1, num2))
    End Sub
End Class



' run:
'
' Result: 56088
'

 

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