calcular

public void calcular(View view) {
        if(d.getId()>0){
            SimpleDateFormat formato = new SimpleDateFormat("dd-MM-yyyy HH:mm:ss");
            Date inicio = new Date();
            try{
                inicio = formato.parse(d.getEntrada());

            }catch(Exception ex){
                ex.printStackTrace();
            }

             Date fin = new Date();
             try{
                fin = formato.parse(d.getSalida());
             }catch(Exception ex){
                 ex.printStackTrace();
                 fin = new Date();
                 d.setSalida(formato.format(fin));
            }

            long diff = fin.getTime() - inicio.getTime();
            int tiempo = (int) (diff/1000/60);
            int horas = 0;
            try{
                horas = Integer.parseInt(montoPorHora.getText().toString().trim());
            }catch(NumberFormatException ex){
                ex.printStackTrace();
            }
            //int tiempo = (int)(TimeUnit.HOURS.convert(diff, TimeUnit.MILLISECONDS));
            int total = tiempo * horas;
            d.setTotal(total);
            //Toast.makeText(view.getContext(), "Total: $"+total, Toast.LENGTH_SHORT).show();
            labelTotal.setText("Total para id "+d.getId()+" $"+d.getTotal());
        }else{
            Toast.makeText(this, "LUL", Toast.LENGTH_SHORT).show();
        }
    }