Блин, совсем джаву забыл. Пытаюсь написать double linked list, но ничего не выходит. Ткните носом в ошибки:

[temp]$ cat Node.java
package temp;
public class Node {
protected Object _data;
protected Node _next;
protected Node _previous;
/**Default constructor. Constructs an empty node*/
public Node(){
_data=null;
_next=null;
_previous=null;
}
/**Overloaded constructor*/
public Node(Object o, Node p, Node n){
_data=new Object (o);
_next=new Node (n);
_previous=new Node (p);
}
}
[temp]$ javac Node.java
Node.java:14: Object() in java.lang.Object cannot be applied to (java.lang.Object)
_data=new Object (o);
^
Node.java:15: cannot resolve symbol
symbol : constructor Node (temp.Node)
location: class temp.Node
_next=new Node (n);
^
Node.java:16: cannot resolve symbol
symbol : constructor Node (temp.Node)
location: class temp.Node
_previous=new Node (p);
^
3 errors
[temp]$