public class Node
{
        private Comparable data;
        private Node next;


        /*
         * Constructor.  Initializes instance variables
         * to specified values
         */
        public Node (Comparable data, Node next)
        {
                this.data = data;
                this.next = next;
        }


        /*
         * Constructor.  Initializes data to the
         * specified value, and the next reference
         * to null
         */
        public Node (Comparable data)
        {
                this.data = data;
                this.next = null;
        }


        /*
         * Returns the data
         */
        public Comparable getData()
        {
                return data;
        }


        /*
         * Returns reference to next node
         */
        public Node getNext()
        {
                return next;
        }


        /*
         * Sets the next reference to the specified value
         */
        public void setNext(Node next)
        {
                this.next = next;
        }


        /*
         * Sets the data to the specified value
         *
         * We could have chosen not to implement this
         * method, and instead force users to create
         * new Node objects when they want to change
         * the data.
         */
        public void setData(Comparable data)
        {
                this.data = data;
        }
}