update,

it114105/itp3914/Assignment/21-22/Node.java

@@ -0,0 +1,14 @@
+public class Node {
+    public Object data;
+    public Node next;
+
+    public Node(Object data){
+        this.data = data;
+        next = null;
+    }
+
+    public Node(Object data, Node next){
+        this.data = data;
+        this.next = next;
+    }
+}