public static void Swap()
{
LinkedListSwap llist = new LinkedListSwap();
//testing
// Adding elements in the LinkedList
// Using AddLast() method
llist.push(4);
llist.push(3);
llist.push(2);
llist.push(1);
Console.Write("\n Linked list before calling swapNodes() ");
llist.printList();
llist.swapNodes(2, 1);
llist.swapNodes(4, 3);
Console.Write("\n Linked list after calling swapNodes() ");
llist.printList();
}
