--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main/csharp/jp.ac.u-ryukyu.ie.cr/jungle/data/list/headNode.cs	Tue Jun 21 17:11:12 2016 +0900
@@ -0,0 +1,70 @@
+using UnityEngine;
+using System.Collections;
+using System;
+
+public class headNode<T> : Node<T>{
+	private Node<T> next;
+
+	public headNode(){
+		this.next = new TailNode<T> ();
+	}
+
+	public headNode(Node<T> next){
+		this.next = next;
+	}
+
+	public Node<T> getNext(){
+		return next;
+	}
+
+	public T getAttribute(){
+		return default(T);
+	}
+
+	public Node<T> add(int currentNum, int num, T attribute) {
+		Node<T> newNode;
+		if (num == 0) {
+			newNode = new DefaultNode<T>(attribute, next);
+			return new headNode<T>(newNode);
+		}
+		newNode = next.add(currentNum + 1, num, attribute);
+		if (newNode == null) {
+			return this;
+		}
+		return new headNode<T>(newNode);
+	}
+
+	public Node<T> addLast(T attribute) {
+		Node<T> node = next.addLast(attribute);
+		return new headNode<T>(node);
+	}
+
+	public Node<T> delete(int currentNum, int deleteNum) {
+		if (currentNum == deleteNum) {
+			return new headNode<T>(this.next.getNext());
+		}
+
+		Node<T> newNode = next.delete(currentNum + 1, deleteNum);
+		if (newNode == null) {
+			return this;
+		}
+		return new headNode<T>(newNode);
+	}
+
+	public Node<T> replaceNode(int currentNum, int num, T attribute) {
+		Node<T> nextNode = getNext();
+		Node<T> newNode = nextNode.replaceNode(currentNum, num, attribute);
+		if (newNode == null)
+			return this;
+		return new headNode<T>(newNode);
+	}
+
+	public int length() {
+		return next.length();
+	}
+
+    public T getAttribure()
+    {
+        throw new NotImplementedException();
+    }
+}