public SimpleListItem <T> GetItem(int number)
{
if ((number < 0) || (number >= this.Count))
{
throw new Exception("Выход за границу индекса");
}
SimpleListItem <T> current = this.first;
int i = 0;
while (i < number)
{
current = current.next;
i++;
}
return(current);
}
public void Add(T element)
{
SimpleListItem <T> newItem = new SimpleListItem <T>(element);
this.Count++;
if (last == null)
{
this.first = newItem;
this.last = newItem;
}
else
{
this.last.next = newItem;
this.last = newItem;
}
}
public T Pop()
{
T Result = default(T);
if (this.Count == 0)
{
return(Result);
}
if (this.Count == 1)
{
Result = this.first.data;
this.first = null;
this.last = null;
}
else
{
SimpleListItem <T> newLast = this.GetItem(this.Count - 2);
Result = newLast.next.data;
this.last = newLast;
newLast.next = null;
}
this.Count--;
return(Result);
}