public T Pop()
{
if (Top == null)
{
return(default(T));
}
T obj = Top.Object;
Top = Top.Previous;
if (Top != null)
{
Top.Next = null;
}
return(obj);
}
public void Push(T obj)
{
MyStackItem <T> item = new MyStackItem <T>(obj);
if (Top != null)
{
item.Previous = Top;
Top.Next = item;
Top = Top.Next;
}
if (Top == null)
{
Top = item;
}
}
