Can an If statement test expressions other than relational expressions?

Question

In Visual Basic.Net

Answer 1

Yes a boolean value may be used . (True or False) Also boolean values equate to False = 0 and any other non zero value equals true. If a CBool conversion function is used a True always evaluates to the non zero value of -1

Dim myBool as Boolean

if myBool then
' do this if true
else
'do this if false
end if


Dim myInt As Integer
Dim str As String

str = "abc"
myInt = str.Length

If (myInt - 3) Then
Debug.Write("str lenght is three =False")
Else
'The result of myint - 3 = 0 which is a boolean False
Debug.WriteLine("str lenght is three = True")
End If

Answer 2

Relational Expression

Answer 3

Yes.