///Sets next element from the Last Last, returns element of the former Last.
public int Pop()
{
if (Last == null)
{
return(0);
}
int result = Last.GetValue();
Last = Last.GetNext();
return(result);
}
/// Deletes last element, returns its value. If stack is empty, throws exeption.
public int Pop()
{
if (head == null)
{
throw new StackNullExeption("Trying to pop an empty stack.");
}
int result = head.GetValue();
head = head.GetNext();
return(result);
}
