private static void exportaProductos(ArrayList p){
		ObjectOutputStream fichero = null;
		try {
			fichero = new ObjectOutputStream(new FileOutputStream("productos.mio"));
			for(int x = 0; x<p.size(); x++){
				fichero.writeObject(p.get(x));
			}
			
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}finally{
			try{
				fichero.close();
			}catch(IOException f){}
			
		}
		
	}