// insert new node after current node
public void InsertAfter(T theElement)
{
CNode <T> newNode = new CNode <T>(theElement);
newNode.Link = current.Link;
current.Link = newNode;
}
// write contenst of list to console
public void ShowList()
{
CNode <T> current = header.Link;
while (!(current == null))
{
Console.WriteLine(current.Element);
current = current.Link;
}
}
// insert new node before current node
public void InsertBefore(T theElement)
{
CNode <T> newNode = new CNode <T>(theElement);
if (previous.Link == null)
{
throw new InsertBeforeHeaderException("Can't insert here.");
}
else
{
newNode.Link = previous.Link;
previous.Link = newNode;
current = newNode;
}
}
// resets iterator
public void Reset()
{
current = theList.GetFirst();
previous = null;
}
// goes to next node
// current node becomes previous
// next node becomes current node
public void NextLink()
{
previous = current;
current = current.Link;
}
// new iterator
// parameter list linkedlist for iterator
public ListIter(CLinkedList <T> list)
{
theList = list;
current = theList.GetFirst();
previous = null;
}
public CNode(T theElement)
{
Element = theElement;
Link = null;
}
public CNode()
{
Element = default(T);
Link = null;
}
// new Clinkedlist
public CLinkedList()
{
header = new CNode <T>(default(T));
}