Public Class Form1 Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click Dim a As Single Dim b As Single Dim c As String a = 22 b = 2 a = g(a) c = "hg" Debug.Print(c) End Sub Function f(a As Single) Dim f1 As Single f1 = 2 * a Return f1 End Function Function g(a As Single) Dim f1 As Single f1 = 2 * a + 5 Return f1 End Function End Class