Java: Using a regular fetch of numbers in a string (for example, extracting a verification code from a text message)

Using Java regularization makes it easy to extract eligible content from a string.

1. Extract all the phone numbers in the string:

private void Getphonenum (String smsbody) {        Pattern pattern = Pattern.compile ("(13|14|15|18) \\d{9}");        Matcher Matcher = Pattern.matcher (smsbody);        while (Matcher.find ()) {            System.out.println (Matcher.group ());        }    }

2. In Android development, it is sometimes necessary to extract the verification code (6 digits) in the SMS:

private string Getyzmfromsms (String smsbody) {        Pattern pattern = Pattern.compile ("\\d{6}");        Matcher Matcher = Pattern.matcher (smsbody);        if (Matcher.find ()) {            return matcher.group ();        }        return null;    }

Java: Using a regular fetch of numbers in a string (for example, extracting a verification code from a text message)