What is shadowing?
Answers were Sorted based on User's Feedback
Answer / manikandan
When global and local varible in the same name.
the local varibale in a mehod or function which use to
override the global is called the shadowing.
ie the Global varible is being shadowed by the
local varible
Is This Answer Correct ? | 41 Yes | 8 No |
Answer / sonia.sardana
If there are overloaded methods in the base class, & u
marks one of the methods as shadows using the keyword
shadow in the derived class, then we cannot access the
overloaded methods.
Ex-
public class base
public sub test()
console.writeline("sonia")
end sub
public sub test(i as integer)
console.writeline(i)
end sub
end class
public sub derived
inherirts base
shadows sub test(x as integer)
console.writeline("Shadow method")
end sub
end class
sub main()
dim obj as new derived
obj.test()-->Invalid
obj.test(10)-->Valid
end sub
Is This Answer Correct ? | 22 Yes | 5 No |
Answer / rohit
Whatever the code written by Sonia.sardana is shows the
shadowing concept but there is some print mistakes in the
code.The correct code is---
imports system
module m1
public class base
Public Sub test()
Console.WriteLine("sonia")
End Sub
Public Sub test(ByVal i As Integer)
Console.WriteLine(i)
End Sub
End Class
Public class derived
inherits base
Shadows Sub test(ByVal x As Integer)
Console.WriteLine("Shadow method")
End Sub
end class
Sub main()
Dim obj As New derived
obj.test() 'This will show error
obj.test(10) 'This is valid
End Sub
end module
Is This Answer Correct ? | 8 Yes | 6 No |
Answer / rohatash
there are overloaded methods in the base class, & u
marks one of the methods as shadows using the keyword
shadow in the derived class, then we cannot access the
overloaded methods.
Module Module1
Class A
Public Sub Show()
Console.WriteLine("Calling from A")
End Sub
End Class
Class B
Inherits A
Public Shadows Sub Show()
Console.WriteLine("Calling from B")
End Sub
End Class
Class C
Inherits B
Public Shadows Sub Show()
Console.WriteLine("Calling from C")
End Sub
End Class
Class Test
Public Shared Sub Main()
Dim x As A
x = New A()
x.Show()
x = New B()
x.Show()
x = New C()
x.Show()
End Sub
End Class
End Module
Is This Answer Correct ? | 3 Yes | 2 No |
what are the types of threading models in VB.net ?
What are the different variables in vb.net?
What is private assembly?
What are the difference between structure and class?
What is portable executable?
Sir, what code to store data from vb net sql server 2008 to 2005 and at the same time in order to validate the data entered is not the same, but there have been contacts in the module. Examples such as the log table that I created, the user name as the primary key.
hey friends, Firstly I pick the records from the database into the DataGridView, Then I want that If I made any changes to the records in the GridView & Click on Update Button, Changes are Reflected into the main Database .Plz do reply back
Explain the observations between vb.net and vc#.net?
Explain manifest?
What is the use of console application?
How to store jpeg / gif / bmp image in database and how to retrieve them? The most stressful condition is database is distributed and stored images can be retrive from any computer in network and any one can store images from other computer!! plss help its urgent.......RAHUL RATHOD
How do you do multithreading application in VB ?