parser.java

public void parseString(String str) {
        if(TextUtils.isEmpty(str)) {
            // nothing here
            return;
        }

        String[] words = str.split(" ");
        StringBuilder sentence = new StringBuilder(str.length());
        int l_integer;
        double l_double;
        for(String word : words) {
            if(TextUtils.isDigitsOnly(word)) {
                // try to parse int
                try {
                    l_integer = Integer.parseInt(word);
                }catch (NumberFormatException e) {
                    //attempt to parse double
                    l_double = Double.parseDouble(word);
                }
            } else {
                sentence.append(word + " ");
            }
        }
    }