public void reverse()
{
DllNode temp = null;
var runner = head;
while (runner != null)
{
temp = runner.Prev;
runner.Prev = runner.Next;
runner.Next = temp;
runner = runner.Prev;
}
if (temp != null)
{
head = temp.Prev;
}
}
public void add(int value)
{
DllNode newNode = new DllNode(value);
if (head == null)
{
head = newNode;
tail = newNode;
}
else
{
DllNode runner = head;
while (runner.Next != null)
{
runner = runner.Next;
}
runner.Next = newNode;
newNode.Prev = runner;
tail = newNode;
}
}
public DoubleLinkList()
{
head = null;
prev = null;
tail = null;
}
public DllNode(int value)
{
this.value = value;
Next = null;
}
