public void Add(T data)
{
SimpleListItem <T> newItem =
new SimpleListItem <T>(data);
this._size++;
if (tail == null)
{
this.head = newItem;
this.tail = newItem;
}
else
{
this.tail.next = newItem;
this.tail = newItem;
}
}
public T Pop()
{
T Result = default(T);
if (this.size == 0)
{
return(Result);
}
if (this.size == 1)
{
Result = this.head.data;
this.head = null;
this.tail = null;
}
else
{
SimpleListItem <T> newTail = this.GetItem(this.size - 2);
Result = newTail.next.data;
this.tail = newTail;
newTail.next = null;
}
this.size--;
return(Result);
}