Question

How to exit a method in VB.NET

Answer 1

Imports System

Public Class Program
    Public Shared Sub Main(ByVal args As String())
        Try
            Console.WriteLine(f(3))
            Console.WriteLine(f(0))
        Catch ex As ArgumentException
            Console.WriteLine("Err: " & ex.Message)
        End Try
    End Sub

    Public Shared Function f(ByVal n As Integer) As Integer
        If n = 0 Then
            Throw New ArgumentException("The value 0 is not accepted.")
        End If

        Return n * 100
    End Function
End Class



' run:
'
' 300
' Err: The value 0 is not accepted.
'

 

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Answer 2

Imports System

Public Class Program
    Public Shared Sub Main(ByVal args As String())
        Console.WriteLine([function](3))
        Console.WriteLine([function](0))
    End Sub

    Public Shared Function [function](ByVal n As Integer) As Integer
        If n = 0 Then
            Console.WriteLine("Err: The value 0 is not accepted. Returning -1.")
            Return -1
        End If

        Return n * 100
    End Function
End Class



' run:
'
' 300
' Err: The value 0 is not accepted. Returning -1.
' -1
'

 

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