Program Linked List Tambah Depan

Bagi teman2 yang butuh SourcoCode Program Linked List Tambah Depan dan Tampil Depan dengan bahasa Java disini ada tapi disini memakai Jeliot.
Berikut SourcoCodenya:

import jeliot.io.*;

class Link{
      public int Data;
      public Link next;

      public Link(int a){
             Data = a;
      }

      public void displayLink(){
             System.out.print("["+Data+"] ");
      }
}

class LinkList{
      private Link first;

      public LinkList(){
             first = null;
      }

      public void insertFirst(int a){
              Link newLink = new Link(a);
              newLink.next = first;
              first = newLink;
      }

      public void displayList(){
             System.out.print("List (Awal ==> Akhir): ");
             Link isidata = first;
             while(isidata != null){
                   isidata.displayLink();
                   isidata = isidata.next;
             }
             System.out.println("");
     }
}

class LinkListApp{
      public static void main(){
             int pil=0;
             LinkList theList = new LinkList();
             while(pil !=3){
                  System.out.println("1. Tambah Data");
                  System.out.println("2. Tampilkan List");
                  System.out.println("3. Exit");
                  System.out.print("Masukkan Pilihan: ");pil=Input.readInt();
                  if(pil==1){
                     int isi=Input.readInt();
                     theList.insertFirst(isi);
                  }
                  else if(pil==2){
                      theList.displayList();
                  }
                  else{
                      System.out.println("Pilihan tidak ada");
                  }
             }
     }
}