Krdytkyu

My question is : How can I connect the first node, last node and new node when I add item at the beginning or at any position? Assume that there is a interface called StudentInterface has three methods Add ,isEmpty, and print....i dont have the full code right now i have only the class who implements the Interface..if someone needed the full code i would add it.

public class LinkedList2 implements StudentInterface {



    public Node FirstNode;

    public Node LastNode;

    int length;



    public LinkedList2(){

        clear();

    }



    public final void clear(){

        FirstNode=null;

        LastNode=null;

        length=0;

    }



    public boolean isEmpty(){

        return length==0;

    }



    private class Node{

        private Object Data;

        private Node next;



        private Node(Object Item){

            Data=Item;

            next=null;

        }

        private Node(Object Item , Node NextNode){

            Data=Item;

            next=NextNode;

        }

    }



    public boolean Add(Object Item){

        Node newNode= new Node(Item);



        if(isEmpty()){

            /* here aremy problems-------> FirstNode=newNode; */

            /* here are my problems------->newNode.next=LastNode; */

        }else{

            /* here are my problems------->FirstNode.next=newNode; */   

        }

        length++;

        return true;

    }