/*
 * File : Node.java
 *
 * This file define the class 'Node'.
 * Each 'Node' has a 'VALUE' of type integer.
 * Each 'Node' has a 'NEXT' node of type 'Node'.
 * This class allows to create objects of type 'Node'.
 * An object of type 'Node' can then be used in a list.
 *
 */


/* This is the class declaration. */
public class Node {

   /* Those are two private variables of the class. */
   /* They are only accessible from within the class. */
   private int VALUE; // Define the value of the node.
   private Node NEXT; // Define the next node in the list.

   /* This is the class constructor method. */
   /* This is the method called when you create an instance of the */
   /* class 'Node' with the key word new. */
   Node() {
      this.VALUE=0;   // Set the value of the node to 0.
      this.NEXT=null; // Set the NEXT field to 'null'.
   }


   /* This is another constructor method. */
   /* This one is using an argument. You can create a node with */
   /* an initial value. */
   Node(int value) {
      this.VALUE=value; // The keyword this refers to
      this.NEXT=null;   //  the current class.
   }

   /* This is a public method of the class. */
   /* Is set the 'VALUE' of the node. */
   public void setValue(int value) {
      this.VALUE=value;
   }

   /* This public method return the 'VALUE' of the node. */
   public int getValue() {
      return this.VALUE;
   }

   /* This public method set the value of the 'NEXT' field. */
   public void setNext(Node next) {
      this.NEXT=next;
   }

   /* A public method to get the value of the 'NEXT' field. */
   public Node getNext() {
      return NEXT;
   }

}