public int Add(Transport d)
{
MyLinkedList nw = new MyLinkedList(d);
if (first == null)
{
first = nw;
}
else
{
nw.next = end;
end.prev = nw;
}
end = nw;
count++;
return(count - 1);
}
public MyLinkedList(MyLinkedList c)
{
while (c != null)
{
MyLinkedList list = c;
list.next = c.next;
list.prev = c.prev;
c = c.next;
if (list.prev == null)
{
end = list;
}
if (list.next == null)
{
first = list;
}
}
}
public void Remove(Transport value)
{
if (value == null)
{
throw new Exception();
}
if (count == 1 && data.Equals(value))
{
Clear();
return;
}
MyLinkedList cur = end;
if (cur.data.Equals(value))
{
end = end.next;
end.prev = null;
count--;
return;
}
while (cur.next != null)
{
if (cur != null)
{
if (cur.data.Equals(value))
{
cur.next.prev = cur.prev;
cur.prev.next = cur.next;
count--;
return;
}
}
cur = cur.next;
}
if (cur.data.Equals(value))
{
cur.prev.next = null;
count--;
}
}
public override bool Equals(object obj)
{
if (!(obj is MyLinkedList))
{
throw new TypeAccessException();
}
if (obj == null)
{
throw new ArgumentNullException();
}
MyLinkedList o = obj as MyLinkedList;
MyLinkedList cur = end;
foreach (MyLinkedList it in cur)
{
if (!o.data.Equals(cur.data))
{
return(false);
}
o = o.next;
}
return(true);
}
public void Clear()
{
first = null;
end = null;
count = 0;
}
