android判断是否为手机号码，隐藏中间4位

/**     * 检查是否是电话号码     *      * @return     */    public static boolean isMobileNum(String mobiles) {        Pattern p = Pattern                .compile("^((13[0-9])|(15[^4,\\D])|(18[0-9]))\\d{8}$");        Matcher m = p.matcher(mobiles);        return m.matches();    }

用****替换手机号码中间4位String mobile = "12345671234";String maskNumber = mobile.substring(0,3)+"****"+mobile.substring(7,mobile.length());