Programmatically create a task item and assign to a user in SharePoint 2010

 
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.SharePoint;
 
namespace Console
{
    class Program
    {
        static void Main(string[] args)
        {
            using (SPSite site = new SPSite("https://serverName/sites/TEST"))
            {
                using (SPWeb web = site.OpenWeb())
                {
                    SPList list = web.Lists.TryGetList("Tasks");
                    if (list != null)
                    {
                        // get the SharePoint group
                        SPUser user = web.EnsureUser(@"domainName\userName");
 
                        // Create a new task item
                        SPListItem task = list.Items.Add();
                        SPFieldUserValue assignToGroup = new SPFieldUserValue(web, user.ID, user.Name);
                        task["AssignedTo"] = assignToGroup; 
                        task["Title"] = "Testing";
                        task["Description"] = "Testing";                       
                        task.Update();
                    }
                }
            }
        }
    }
}