android - Problems with Serialization -

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There are some problems with sorting my items.

Missing, because my app is not like saving .dat.

We show some code:

load .dat file 

  Public Zero Dark (Object Output Stream Out) IOException Throws {out.writeObject (lista); Out.writeObject (cadeiras); Out.writeObject (notas); Out.close (); }   
  Save the .dat file   
  throws the Public Zero Effective (ObjectInputStream in) IOException, ClassNotFoundException {lista = (ArrayList & Lt; string & gt;) in.readObject (); Cadeiras = (ArrayList & lt; string & gt;) in.readObject (); Notas = (ArrayList & lt; string & gt;) in.readObject (); In.close (); }   
 When I try to save the file, my app catches the exception  FileNotFoundException  here:  
  case R.id. Gravar: Object OutputStream Out; Try {out = new object overputstream (new file output stream (FICH)); Gravar (outside); Toast. Make Text (getApplicationContext (), "Good!", Toast. LNNGH_LAG). Show (); } Hold (FileNotFoundException E) {// TODO Auto-Generated Catch Block Toast MakeApplicationContext (), "Error 1!", Toast. LNNGGH_LOG). Show (); E.printStackTrace (); } Grip (IOE EXPRESS E) {Toast. MakeApplicationContext (), "Error 2!", Toast.LnnGH_LOG). Show (); E.printStackTrace (); } Back true;   
  Fitch  is:  
  Private Static String Fitch = "gravar.dat";   
 What am I missing? For better help, I give my code here.  
  
 Thanks in advance!   
 
 
 You pass the whole path instead of the file name on the file only  file on the output stream  should do.  
 If doing so does not try it  
  New FileOutputStream (new file (Fitch));

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