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VB.Net program to check given element exists in the stack or not using the collection

Here, we are going to learn how to check given element exists in the stack or not using the collection in VB.Net?
Submitted by Nidhi, on January 15, 2021 [Last updated : March 08, 2023]

Check an element in stack in VB.Net

Here, we will use Contains() method of the Stack collection class to check given item is found in the stack or not.

Program/Source Code:

The source code to check the given element exists in the stack or not using collection is given below. The given program is compiled and executed successfully.

VB.Net code to check given element exists in the stack or not using the collection

'VB.Net program to check given element exists 
'or not in the stack using the collection.

Imports System
Imports System.Collections

Module Module1
    Sub Main()
        Dim stk As New Stack(5)

        stk.Push(40)
        stk.Push(30)
        stk.Push(20)
        stk.Push(10)

        If (stk.Contains(20)) Then
            Console.WriteLine("Element exists in the stack")
        Else
            Console.WriteLine("Element does not exists in the stack")
        End If
    End Sub
End Module

Output

Element exists in the stack
Press any key to continue . . .

Explanation

In the above program, we created a module Module1 that contains the Main() function. The Main() function is the entry point for the program, Here, we created an object of Stack collection class for 5 elements. After that we inserted 4 items using the Push() method into the stack and then check the specified item in the stack using Contains() method. The Contains() method return "True" when the item is found in the stack or not. Otherwise, it returns "False".

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