public void Execute(ArgumentList arguments, TaskList tasklist, TagList tags, TagFolder folder)
{
if (tasklist.HasSameTask(arguments.GetParameter(1)) == false)
{
Task task = new Task();
FileIO loader = new FileIO();
task.TaskDescription = arguments.GetParameter(1);
task.IsNewTask = true;
task = CheckDueDate(arguments, task);
tasklist.AddTask(ref task);
loader.SaveTasks(tasklist.GetTasks());
Console.WriteLine("Task {0} added", task.TaskDescription);
}
else Console.WriteLine("Task already in list");
}