Name
Stack Class
Namespace
System.Collections
Createable
Yes
Syntax
Dimstackvariable
As [New] Stack
-
stackvariable
Use: Required
Data Type: Stack object
The name of the Stack object
Description
A Stack object is a model of a stack.
Succinctly put, a stack is a last-in, first-out data structure. (This is often abbreviated LIFO.) Put another way, a stack is a data structure that models a stack of items (like a stack of dinner plates). There is a method for inserting items at the top of the stack (pushing) as well as a method for removing the item that is currently at the top of the stack (popping). Under this scenario, the next item to be popped is the item that was placed in line last—hence the phrase, last-in, first-out.
Note that the elements in a Stack object are of type Object.
Stack class members marked with a plus sign (+) ae discussed in detail in their own entries.
Public Shared Method
Synchronized
Public Instance Properties
Count +
IsReadOnly
IsSynchronized
SyncRoot
Public Instance Methods
Clear +
Clone
Contains +
CopyTo +
Equals
GetEnumerator
GetHashCode
GetType
Peek +
Pop +
Push +
ToArray +
ToString
Example
' Define a new stack Dim s As New Stack( ) ' Push some items onto the stack s.Push("Chopin") s.Push ("Mozart") s.Push ("Beethoven") ' Is an item in the stack? MsgBox("Beethoven in stack: " & CStr(s.Contains("Beethoven"))) ' Peek at the first (top) item on the stack MsgBox("First item in stack is: " & s.Peek.ToString) ' Send stack to an array and display all items Dim s() As Object = s.ToArray( ) Dim ...
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