public T Pop()
{
T Result = default(T);
if (Count == 0)
{
return(Result);
}
if (Count == 1)
{
Result = first.Data;
first = null;
last = null;
}
else
{
SimpleListItem <T> newLast = this.GetItem(this.Count - 2);
Result = newLast.next.Data;
last = newLast;
newLast.next = null;
}
Count--;
return(Result);
}