Home >>VB.Net Built-in Functions >VB.Net Program to overload equal to (=) and not equal to (< >) operators
Here, using the shared operator method that is used to perform comparisons on the object of the class, we will overload equal to (=) and not equal to (< >).
Program :Below is the source code for overloads equal to (=) and not equal to (< >) operators. The program given is compiled and successfully executed.
'VB.net program to overload equal to (=) and
'not equal to (< >) operator
Class Sample
Dim num As Integer
Sub SetValues(ByVal n As Integer)
num = n
End Sub
Public Shared Operator =(ByVal S1 As Sample, ByVal S2 As Sample) As Boolean
If (S1.num = S2.num) Then
Return True
Else
Return False
End If
End Operator
Public Shared Operator <>(ByVal S1 As Sample, ByVal S2 As Sample) As Boolean
If (S1.num <> S2.num) Then
Return True
Else
Return False
End If
End Operator
Sub PrintValues()
Console.WriteLine("Num: {0}", num)
End Sub
End Class
Module Module1
Sub Main()
Dim obj1 As New Sample()
Dim obj2 As New Sample()
obj1.SetValues(10)
obj2.SetValues(10)
If (obj1 = obj2) Then
Console.WriteLine("Obj1 is equal to Obj2")
Else
Console.WriteLine("Obj1 is not equal to Obj2")
End If
obj1.SetValues(30)
obj2.SetValues(20)
If (obj1 <> obj2) Then
Console.WriteLine("Obj1 is not equal to Obj2")
Else
Console.WriteLine("Obj1 is equal to Obj2")
End If
End Sub
End Module
We have created a Sample class in the above program, which includes two SetValues(), PrintValues() methods to set and print the values of the data members of the class. Here, we have also added overload methods equal to (=) and not equal to (<>) the operator, so we can compare objects.
After that, we built a Module1 module that contains the Main() method, and the program entry point is the Main() method. Here, we created the two Model Class objects and used the SetValues() method to set the value of the data member and then perform object comparison. The following message will be written on the console screen after that.