Six important .NET concepts: Stack, heap, value types, reference types, boxing, and unboxing

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Diagnostics;
namespace WindowsBoxingUnBoxingPerformance
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void btnUnboxandBox_Click(object sender, EventArgs e)
        {
            Stopwatch obj = new Stopwatch();
            obj.Start();
            for (int i=0; i < 10000; i++)
            {
                BoxUnbox();
            }
            obj.Stop();
            lblBoxUnBox.Text = obj.Elapsed.ToString();
            
        }
        private void BoxUnbox()
        {
            int i = 123;
            object j = i;
        }
        private void SimpleVariableAssignment()
        {
            int i = 123;
            int j = i;
        }
        private void btnSimpleVariableAssignment_Click(object sender, EventArgs e)
        {
            Stopwatch obj = new Stopwatch();
            obj.Start();
            for (int i=0; i < 10000; i++)
            {
                SimpleVariableAssignment();
            }
            obj.Stop();
            lblSimple.Text = obj.Elapsed.ToString();
            
        }
    }
}