Give an example of how to use Application and Session events?

Give an example of how to use Application and Session events?
To see how Application and Session events occur, add the following code to the Global.asax file in a Web forms project.

void Application_Start(object sender, EventArgs e)
{
// Create Application state variables.
Application["AppCount"] = 0;
Application["SessCount"] = 0;
// Record application start.
Application["AppCount"] = (int)Application["AppCount"] + 1;
}

void Session_Start(object sender, EventArgs e)
{
// Count sessions.
Application["SessCount"] = (int)Application["SessCount"] + 1;
}

void Session_End(object sender, EventArgs e)
{
// Decrement sessions.
Application["SessCount"] = (int)Application["SessCount"] - 1;
}

Add the following code to WebForm1.aspx file in a Web forms project and set WebForm1 as start up page.

protected void Page_Load(object sender, EventArgs e)
{
// Display Application count.
Response.Write("Number of applications: " +
Application["AppCount"] + "
");
// Display session count.
Response.Write("Number of sessions: " +
Application["SessCount"] + "
");
}

To demonstrate the events, run the preceding code, and then start a new instance of the browser and navigate to the address. Each new instance of the browser increments the session count, but the application count stays at 1.