c# using thread asyincrnous methods wont work code example

Example: microsoft asynchronous programming

var allTasks = new List{eggsTask, baconTask, toastTask};
while (allTasks.Any())
{
    Task finished = await Task.WhenAny(allTasks);
    if (finished == eggsTask)
    {
        Console.WriteLine("eggs are ready");
    }
    else if (finished == baconTask)
    {
        Console.WriteLine("bacon is ready");
    }
    else if (finished == toastTask)
    {
        Console.WriteLine("toast is ready");
    }
    allTasks.Remove(finished);
}
Juice oj = PourOJ();
Console.WriteLine("oj is ready");
Console.WriteLine("Breakfast is ready!");