public double Summ()
{
Current = First;
double res = 0;
uint count = 1;
while (Current != null)
{
res += Convert.ToDouble(Current.Value);
count++;
Current = Current.Next;
}
return(res);
}
public void AddBack(T item)
{
DoublyNode <T> newDoublyNode = new DoublyNode <T>(item);
if (First == null)
{
First = Last = newDoublyNode;
}
else
{
Last.Next = newDoublyNode;
newDoublyNode.Prev = Last;
Last = newDoublyNode;
}
Count++;
}
public void AddFront(T item)
{
DoublyNode <T> newDoublyNode = new DoublyNode <T>(item);
if (First == null)
{
First = Last = newDoublyNode;
}
else
{
newDoublyNode.Next = First;
First = newDoublyNode;
newDoublyNode.Next.Prev = First;
}
Count++;
}
public void RemoveFront()
{
if (First == null)
{
throw new InvalidOperationException();
}
else
{
DoublyNode <T> temp = First;
if (First.Next != null)
{
First.Next.Prev = null;
}
First = First.Next;
Count--;
}
}
public uint?GetIndex(T item)
{
uint index = 1;
Current = First;
while (Current.Next != null)
{
Current = Current.Next;
index++;
if (Current.Value.Equals(item))
{
return(index);
}
}
return(null);
}
public void Display()
{
if (First == null)
{
Console.WriteLine("Doubly Linked List is empty");
return;
}
Current = First;
uint count = 1;
while (Current != null)
{
Console.WriteLine("Element " + count.ToString() + " : " + Current.Value.ToString());
count++;
Current = Current.Next;
}
}
public void RemoveBack()
{
if (Last == null)
{
throw new InvalidOperationException();
}
else
{
DoublyNode <T> temp = Last;
if (Last.Prev != null)
{
Last.Prev.Next = null;
}
Last = Last.Prev;
Count--;
}
}
public MyDoublyLinkedList()
{
size = 0;
First = Current = Last = null;
}
