public void add(N item)
{
if (count == 0)
{
first.Member = last.Member = item;
first.Next = last.Next = null;
}
else
{
last.Next = new turn <N>(item);
last = last.Next;
}
count++;
}
public int IndexOf(N item)
{
turn <N> temp = first;
for (int i = 0; i < count; i++)
{
if (temp.Member.Equals(item))
{
return(i);
}
temp = temp.Next;
}
return(-1);
}
public N this[int index]
{
get{
if (index < count)
{
turn <N> temp_member = first;
for (int i = 0; i < index; i++)
{
temp_member = temp_member.Next;
}
return(temp_member.Member);
}
else
{
throw new ArgumentException();
}
}
}
public void remove(N item)
{
if (count > 1)
{
turn <N> temp = first;
while (temp.Next != null)
{
if (temp.Next.Member.Equals(item))
{
temp.Next = temp.Next.Next;
count--;
}
}
}
else
{
if ((first.Member.Equals(item)) && (count == 1))
{
first = last = null;
count = 0;
}
}
}
public collection()
{
first = null;
last = null;
count = 0;
}
public turn(N _member)
{
member = _member;
next = null;
}