question: public static boolean isIpAddress ( String ipAddress ) { Matcher m1 = validIPV4Pattern . matcher ( ipAddress ) ; if ( m1 . matches ( ) ) { return true ; } Matcher m2 = validIPV6Pattern . matcher ( ipAddress ) ; return m2 . matches ( ) ; }
target:  Determine if the given string is a valid IPv4 or IPv6 address. This method uses pattern matching to see if the given string could be a valid IP address.