Porting Java ME to Android (working with files)

I'm trying to port a Java ME application to Android.

Since I'm not a Java developer I'm having some issues to resolve.

1. Working with files

   FileConnection fconn = null;
   fconn = (FileConnection)Connector.ope开发者_如何学Cn(fileName, Connector.READ);
   InputStream inputStream = null;
   inputStream = fconn.openInputStream();
   return inputStream;
   

How can I do this in Android?

  FileInputStream fIn = null;
  try{

   char[] inputBuffer = new char[1024];
   String data = null;
   fIn = openFileInput(“public.dat”);

   return fIn;

}catch(IOException e){
  e.printStackTrace(System.err);

}