Reminder code for regexp parsing in java

regexps_tut.java

final Pattern IP_PATTERN = Pattern.compile("\\A(\\d{1,3})[.](\\d{1,3})[.](\\d{1,3})[.](\\d{1,3})\z");
 private boolean ipAddressValidator(String iPaddress){
        Matcher m = IP_PATTERN.matcher(iPaddress);
        boolean matches = m.matches();
        boolean validIp = false;
        int[] octects = extractIpOctets(iPaddress);
        for(int octet: octects){
            if (octet > 255){
                validIp = false;
                break;
            } else {
                validIp = true;
            }
        }
        return matches && validIp;
    }

private int[] extractIpOctets(String ip){
    int[] octects = new int[4];
    Matcher group = IP_PATTERN.matcher(ip);
    boolean matchFound = group.find();
    if (matchFound) {
        for (int i=1; i<=group.groupCount(); i++) {
            octects[i-1] = Integer.valueOf(group.group(i));
        }
    }
    return octects;
}