C# Generic Stack<T> Tutorial with Programming Example

What is Generic Stack<T> in C#?

The stack is based on Last In First Out [LIFO] mechanism. It is required when you need to access recently added item first. For example, all of you would have used Undo function. When you press Ctrl + Z then the last changes made by you reversed. It is an example of a stack.

How to initialize Stack<T>?

Stack<string> mystack=new Stack<string>();

Important Properties and Methods of Stack

Programming Example

using System;
using System.Collections.Generic;

namespace GenericStackExample
{
    public class Program
    {
        public static void Main(string[] args)
        {
            Stack<string> mystack=new Stack<string>();
            //Adding Item in stack
            mystack.Push("Sunday");
            mystack.Push("Monday");
            mystack.Push("Tuesday");
            mystack.Push("Wednesday");
            mystack.Push("Thursday");
            mystack.Push("Friday");
            mystack.Push("Saturday");
            print(mystack);

            //Accessing Top Item without removing it.
            Console.WriteLine("\nTop Item is : {0}",mystack.Peek());

            //Removing Item from Stack
            Console.WriteLine("\nRemoved Top Item of Stack : " + mystack.Pop());  
            Console.WriteLine("\nNow Stack's Items are : ");
            print(mystack);          
        }
        public static void print(Stack<string> sp)
        {
            foreach(string s in sp)
            {
                Console.Write(s.ToString() + " | ");
            }
        }
    }
}

Saturday | Friday | Thursday | Wednesday | Tuesday | Monday | Sunday | 
Top Item is : Saturday
Removed Top Item of Stack : Saturday
Now Stack's Items are : 
Friday | Thursday | Wednesday | Tuesday | Monday | Sunday | 

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Summary

In this tutorial you learned about Generic Stack<T> In C# with programming example.