Stack

Description

Stack collection contains a group of elements based on LIFO (Last-In-First-Out) based collection.

Stack<T> referenceVariable = new Stack<T>();

Full Path: System.Collections.Generic.Stack
It is based on LIFO (Last-In-First-Out).
The Stack class is a generic class, requiring specification of the data type of elements when creating an object.
You cannot access elements based on index.
It is not index-based. You need to access elements by using Pop, Peek, and foreach loop.

Example:

Stack<Student> marks = new Stack<Student>();

foreach (Student item in marks) {
    Console.WriteLine(item.Marks);
}

Feature	Description
`Count`	Returns the count of elements in the stack.
`Push(T)`	Adds an element at the top of the stack.
`Pop()`	Removes and returns the element at the top of the stack.
`Peek()`	Returns the element at the top of the stack without removing it.
`Contains(T)`	Determines whether the specified element exists in the stack.
`ToArray()`	Converts the stack into an array.
`Clear()`	Removes all elements from the stack.

Info

All the shared features can be used for Stack

Is used to add an object to the top of the stack.

Example:

marks.Push(new Student() { Marks = 45 });
marks.Push(new Student() { Marks = 61 });
marks.Push(new Student() { Marks = 80 });

Is used to remove and return the object at the top of the stack. It modifies the stack by removing the top-most element.

Example:

Student stu = marks.Pop();
Console.WriteLine("Pop: " + stu.Marks);