Stack.Pop() method with example in C#

C# Stack.Pop() method: Here, we are going to learn about the Pop() method of Stack class in C#.
Submitted by IncludeHelp, on March 28, 2019

C# Stack.Pop() method

Stack.Pop() method is used to remove an object from the top of the stack. The method removes and returns the object from the top.

Syntax:

    Object Stack.Pop();

Parameters: None

Return value: Object – it returns the items to be removed from the top.

Example:

    declare and initialize a stack:
    Stack stk = new Stack();

    insertting elements:
    stk.Push(100);
    stk.Push(200);
    stk.Push(300);
    stk.Push(400);
    stk.Push(500);

    popping stack elements:
    stk.Pop();
    stk.Pop();
    stk.Pop();
    
    Output:
    200 100

C# example to remove an object from the stack using Stack.Pop() method

using System;
using System.Text;
using System.Collections;

namespace Test
{
    class Program
    {
        //function to print stack elements
        static void printStack(Stack s)
        {
            foreach (Object obj in s)
            {
                Console.Write(obj + " ");
            }
            Console.WriteLine();
        }

        static void Main(string[] args)
        {
            //declare and initialize a stack
            Stack stk = new Stack();

            //insertting elements
            stk.Push(100);
            stk.Push(200);
            stk.Push(300);
            stk.Push(400);
            stk.Push(500);

            //printing stack elements
            Console.WriteLine("Stack elements before popping are...");
            printStack(stk);

            //popping stack elements
            object item = 0;
            item = stk.Pop();
            Console.WriteLine(item + " is popped");
            item = stk.Pop();
            Console.WriteLine(item + " is popped");
            item = stk.Pop();
            Console.WriteLine(item + " is popped");

            //printing stack elements
            Console.WriteLine("Stack elements after popping are...");
            printStack(stk);

            //hit ENTER to exit
            Console.ReadLine();
        }
    }
}

Output

Stack elements before popping are...
500 400 300 200 100
500 is popped
400 is popped
300 is popped
Stack elements after popping are...
200 100