使用Java Pattern Matcher

 

 

    public int appearNumber(String srcText, String findText) {
        int count = 0;
        Pattern p = Pattern.compile(findText);
        Matcher m = p.matcher(srcText);
        while (m.find()) {
            count++;
        }
        if (count > maxCount)
            maxCount = count;

        return count;
    }