What is shadowing

Q

What is shadowing ?

✍: Guest

A

When two elements in a program have same name, one of them can hide and shadow the other one. So in such cases the element which shadowed the main element is referenced.
Below is a sample code, there are two classes “ClsParent” and “ClsShadowedParent”. In “ClsParent” there is a variable “x” which is a integer. “ClsShadowedParent” overrides “ClsParent” and shadows the “x” variable to a string

Public Class ClsParent
Public x As Integer
End Class
Public Class ClsShadowedParent
Inherits ClsParent
Public Shadows x As String
End Class

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2007-10-23, 6103👍, 0💬