public void addToEnd(int data)
{
if (headNode == null)
{
headNode = new DoubleLinkNode(data);
tailNode = headNode;
}
else
{
tailNode = headNode.addToEnd(data);
}
}
public DoubleLinkNode addToEnd(int data)
{
if (next != null)
{
return(next.addToEnd(data));
}
else
{
DoubleLinkNode temp = new DoubleLinkNode(data);
next = temp;
temp.prev = this;
return(temp);
}
}