String body = "You have bought USD 1.00 Whatsapp for 784024487. Your new wallet balance is USD 1.04. Happy Birthday EcoCash for turning 7years. Live Life the EcoCash Way.";
String regex="([0-9]+[.][0-9]+)";
Pattern pattern=Pattern.compile(regex);
Matcher matcher=pattern.matcher(body);
while(matcher.find())
        {
            String detail = "Airtime";
            transUtilsList.add(new TransUtils(detail,+matcher.group(),matcher.group()));
        }