Reverse a linked list

public void reverse() 
    { 
        Node current = head; 
        head = null ; //set head to null 
        while(current != null) 
        { 
            Node save = current; 
            //Interchange the pointers 
            current = current.next; 
            save.next = head; 
            head = save; 
        } 
    }

http://www.ihas1337code.com/2010/04/reversing-linked-list-iteratively-and.html