Linked List Implementation in Java

Many of Us feel that one can't implement Link List in Java since Pointer is not available... But its not true...check the below program... :) .... It will change your concept about Objects in Java ....

class LinkList{

                int data;

                LinkList next=null;

                static int count=0;

                static LinkList head;

                 void add(int item){

                                 if(head==null){                                          

                                               head= new LinkList();

                                                head.data = item;

                                                head.next=null;

                                                count++;

                                }

                                  else{

                                                LinkList t=head;

                                                while(t.next!=null){

                                                                t=t.next;

                                                }                                             

                                                t.next = new LinkList();

                                                t.next.data = item;

                                                t.next.next=null;             

                                                count++;

                                }

                }

                void display(){

                                 LinkList t=head;

                                if(t==null){

                                        System.out.println("List Empty");

                                                return;                     

                                }

                while(t!=null){

                        System.out.println(" "+t.data);

                                                t=t.next;

                }

             }

               

                void menu()

                {

                                System.out.print("\n : Link List Using Java :\n 1.ADD, 2.Display and 3.Exit");                                       

                                while(true){

                                                java.util.Scanner sc = new java.util.Scanner(System.in);

                                                System.out.print("\nEnter Your Choice:");

                                               

                                                int c = sc.nextInt();

                                               

                                                switch(c){

                                                                case 1 :

                                                                                System.out.print("\nEnter Number to insert in LL.:");

                                                                                c = sc.nextInt();

                                                                                add(c); 

                                                                break;                                                  

                                                                case 2 :

                                                                                display();            

                                                                break;                                                  

                                                                case 3 :

                                                                                System.out.print("\nThank You :) .. ");

                                                                return; 

                                                                                                               

                                               

                                                }

                                }

                               

                }

}

class Program{

  public static void main(String args[]){

                                LinkList l=new LinkList();

                                l.menu();

                               

                }

}