BufferedReader problem

Question

I have to read twice the same file
the first time i have to read only the last line
the second time i have to read every single line
when i try to do it i get an IO error stream closed
BufferedReader in = null;
          BufferedReader in1 = null;
          InputStreamReader isr = null;
          InputStreamReader isr1 = null;
          try{
                isr = new InputStreamReader(txt, "UTF-8");
          catch (UnsupportedEncodingException i)
               System.err.println("Exception encoding");
          try{
               in = new BufferedReader(isr);
                in1 = new BufferedReader(isr1);
               String strLine = null, tmp;
               while ((tmp = in1.readLine()) != null)
                  strLine = tmp;
               String lastLine = strLine;
               System.out.println(lastLine);
               in1.close();
          List records = new ArrayList();
          String lineItem;
          Riga1 u = new Riga1();     
          while ((lineItem = in.readLine()) != null) { ...
               How can I solve it ?
Thanks
Gianni

Answer 1

Now i get stream not marked !
sigh ! why ?
public class TxtToXml implements Const{
     public static void converti(InputStream txt, String xml)
          BufferedReader in = null;
          InputStreamReader isr = null;
          try{
                isr = new InputStreamReader(txt, "UTF-8");
          catch (UnsupportedEncodingException i)
               System.err.println("Eccezione di encoding");
          try{
                         in = new BufferedReader(isr);
                         String strLine = null, tmp;
                         in.mark(1);
                              while ((tmp = in.readLine()) != null)
                                 strLine = tmp;
                              String lastLine = strLine;
                              System.out.println(lastLine);
          catch (IOException e) {
                                        System.err.println("Error: " + e);
          try{
               in= new BufferedReader(isr);
          List records = new ArrayList();
          String lineItem;
          Riga1 u = new Riga1();     
          in.reset();
          while ((lineItem = in.readLine()) != null) {
               String tiporecord = lineItem.substring(0, 2);
               int tiporecordInt = Integer.parseInt(tiporecord);
               System.out.println("tiporecordInt "  + tiporecordInt);
               switch (tiporecordInt) {
                    // PARAMETRI
                    case 1 : //Riga1 dati del patronato
                    u.parse(lineItem,tiporecordInt);
                    break;
                    case 2 : //Riga2 richiesta
                    u.parse(lineItem,tiporecordInt);
                    case 3 : //Riga3 prodotto della richiesta max 5 prodotti
                    u.parse(lineItem,tiporecordInt);
                    // u.scrivixml(1);
                    // System.out.println("caso 3 ");
                    break;
                    case 4 : //Riga4 Soggetto della richiesta  max 15 soggetti
                    u.parse(lineItem,tiporecordInt);
                    u.scrivixml(1);
                    // System.out.println("caso 3 ");
                    break;
          in.close();
     catch (IOException e) {
                                 System.err.println("Error: " + e);
}