Android spinner increment number

 public void addItemsOnSpinner() {

        spinner = (Spinner) findViewById(R.id.spinner);
        List<String> list = new ArrayList<String>();
        for (int i=0; i<=255; i++){
            list.add("list " + i);
        }
        ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(this,
                android.R.layout.simple_spinner_item, list);
        dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        spinner.setAdapter(dataAdapter);
    }