Thread: Linked list is not displaying the nodes correctly

LinkedList class

/*This is the main class which created Linked List*/
import java.io.*;
public class LinkedList{
    private Node firstNode,lastNode;
 
 
    public LinkedList(){
        firstNode=null;
        lastNode=null;
    }
 
    public void setLastNode(Node node)
    {
        lastNode=node;
    }
    public void setFirstNode(Node node)
    {
        firstNode=node;
    }
    public Node getFirstNode()
    {
        return (firstNode);
    }
    public Node getLastNode()
    {
        return (lastNode);
    }
 
    public Node createNode(Data data){
        Node newNode=new Node();
        newNode.setData(data);
        newNode.setNext(null);
 
        return (newNode);
    }
 
    public void insertNode(Node node)
    {
        if(this.getFirstNode()==null)
        {
            this.setFirstNode(node);
            this.setLastNode(node);
        }
 
        else
        {
            Node temp;
            temp=this.getFirstNode();
 
            while(temp.getNext()!=null){
                temp=temp.getNext();
            }
            temp.setNext(node);
            this.setLastNode(node);
 
        }
    }
 
    public void showList()
    {
 
        Node temp;
        temp=this.getFirstNode();
 
        while(temp!=null)
        {
            System.out.println("The Current Node is :"+temp.getData().getData());
            System.out.println();
            temp=temp.getNext();
        }
 
    }
 
     public static void main(String args[]) throws IOException
	    {
	        LinkedList myList=new LinkedList();
	        BufferedReader consoleInput=new BufferedReader(new InputStreamReader(System.in));
	        Data data=new Data();
	        Node newNode=new Node();
	        String input;
	        System.out.println("Enter Some Names");
	        System.out.println("Enter stop to quit");
 
	        do{
	            input=consoleInput.readLine();
 
	            data.setData(input);
	            myList.insertNode(myList.createNode(data));
	        }while(!input.equals("stop"));
	        //data.setData(name);
	        //myList.insertNode(myList.createNode(data));
 
 
	        myList.showList();
 
 
	    }
}

Node Class

public class Node
{
    private Data data; //The Data Object to hold data part of the Node
    private Node next; // The Node Object which holds reference to the next Node
 
    //default constructor for Node
    public  Node(){
 
        next=null;
    }
    //Method for setting the Node's Data
    public void setData(Data data)
    {
        this.data=data;
    }
 
    //Method for setting the pointing part of the Node
    public void setNext(Node next){
        this.next=next;
    }
    //Method for getting the Node's Data
    public Data getData(){
        return (data);
    }
    //Method for getting the Nodes' pointing part
    public Node getNext(){
        return (next);
    }
 
}

Data Class

/*This is Data Class Which Holds The Data Part of the Node*/
class Data 
{
 
    private String name;  //String which is the Data Part of the Node
 
    //Mutator method for setting the string
    public void setData(String str){
        this.name=str;
    }
    //Mutator method for getting the string
    public String getData(){
        return (this.name);
    }
 
}

The output I was is to display the input but instead I am getting the sentinel value over and over.
Can any one help me fix this. I need it ASAP

This is the output I get

Enter Some Names
Enter stop to quite

Jogn
A
F
V
C
X
stop
The Current Node is :stop

The Current Node is :stop

The Current Node is :stop

The Current Node is :stop

The Current Node is :stop

The Current Node is :stop

The Current Node is :stop

Press any key to continue . . .