Big decimal

BigDecimal

 

 private String makeDecimal(String str) {
        String result;
        String cleanString = str.replaceAll("[-+.]", "");
        if(str.equals("0")){
            result = "0.0";
        }
        else {
            BigDecimal bigDecimal = new BigDecimal(cleanString).setScale(2, BigDecimal.ROUND_FLOOR).divide(new BigDecimal(10), BigDecimal.ROUND_FLOOR);
            result = NumberFormat.getNumberInstance().format(bigDecimal).replaceAll("[,]", "");
        }
        return result;
    }