Get and Set in the same method?

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Sarge

Please tell me if i missed something with the Null Pointer, why does this set/return 0 :

Type Ship

	Field XVal:Int
	
	Method X:Int( Value:Int = Null )
		 
		If Value = Null Then
			'If you think it wont set it to 0 then just add,
			'Value = 0
			Return Self.XVal
			Else
			Self.XVal = Value
		End If
	
	End Method

End Type

Graphics 800,600, 0

Test:Ship = New Ship

Test.X( 0 )
Print Test.X()

While Not KeyHit( key_escape )
Cls
	
	DrawRect( Test.X(), 50, 100, 100 )

Flip
Wend