I am writing a FTP program to download all the files from PDB FTP, however Im experiencing problem that I cannot solve. I can only download one file with the program which I build, it is actually supposed to download all the files in FTP. Can anyone tell me the error?

import java.io.FileReader;
import java.io.FileWriter;
import java.io.BufferedReader;
import java.io.PrintWriter;
import java.io.IOException;
import java.net.URL;
import java.net.URLConnection;
import java.io.FileOutputStream;
import java.io.*;
import java.util.*;

public class CopyLines {

   public static StringBuffer buffer;
   public static BufferedReader input;

   public static void main(String[] args) throws IOException {

      try {
          URL url = new URL("ftp://ftp.wwpdb.org//pub//pdb//derived_data//pdb_entry_type.txt;type=i");

        URLConnection con = url.openConnection();

        BufferedInputStream in= new BufferedInputStream(con.getInputStream());

        FileOutputStream out = new FileOutputStream("C:\Users\Royston\Documents\FTP downloads\pdb*entry*type.txt");

        int i = 0;
        byte[] bytesIn = new byte[1024];
        while ((i = in.read(bytesIn)) >= 0) {
            out.write(bytesIn, 0, i);
        }
        System.out.println("Download complete!!");
        out.close();
        in.close();
      } catch (Exception e) {
            e.printStackTrace();
      }

    BufferedReader inputStream = null; //  scan input line by line
    PrintWriter outputStream = null;// output aligned the same way

    try {
        inputStream = new BufferedReader(new FileReader("C:\\Users\\Royston\\Documents\\FTP downloads\\pdb_entry_type.txt"));
        outputStream = new PrintWriter(new FileWriter("C:\\Users\\Royston\\Documents\\FTP downloads\\pdb.txt"));

        String l;
        while ((l = inputStream.readLine()) != null) {
            outputStream.println(l);
        }
    } finally {
        if (inputStream != null) {
            inputStream.close();
        }
        if (outputStream != null) {
            outputStream.close();
        }
    }

        try {

        input = new BufferedReader(
        new FileReader( new File("C:\\Users\\Royston\\Documents\\FTP downloads\\pdb.txt") ) );
        String text;
        while ( ( text = input.readLine() ) != null ) {
        StringTokenizer s = new StringTokenizer(text,"");
        int counter=0;
        while(s.hasMoreTokens()) {
            String ss = s.nextToken();
            counter++;
            if (counter == 1 ) // extracts only 1st tokens per line.
                System.out.print(ss + "\n");

              URL url = new URL("ftp://ftp.wwpdb.org//pub//pdb//data//structures//all//pdb//pdb"+ss+".ent.gz;type=i");

              URLConnection con = url.openConnection();

              BufferedInputStream in= new BufferedInputStream(con.getInputStream());

              FileOutputStream out = new FileOutputStream("C:\Users\Royston\Documents\FTP downloads\"+ss+".ent.gz");
              int i = 0;
              byte[] bytesIn = new byte[1024];
              while ((i = in.read(bytesIn)) >= 0) {
                  out.write(bytesIn, 0, i);**
              }

              System.out.println("*****************************************************");
              System.out.println("File Transfer Protocol Download complete!!");
              System.out.println("File Transfer Protocol Download complete!!");
              System.out.println("File Transfer Protocol Download complete!!");
              System.out.println("File Transfer Protocol Download complete!!");
              System.out.println("***************************************************");
              out.close();
              in.close(); 
        }
          }
          System.out.println();

      } catch( IOException ioException ) {}
   }  
}