I would like to have feedback from my blog readers.
We can validate email address at client side and server side.
To validate email address on client side, we can use java script with regular expression.
)$"; Pattern pattern = Pattern.compile(regex); for(String email : emails) List dates = new Array List(); dates.add("07/13/2011"); dates.add("13/07/2011"); dates.add("1/1/11"); dates.add("01/1/2011"); String regex = "^(3|[0-9]|0[1-9])/(1[0-2]|0[1-9])/[0-9]$"; Pattern pattern = Pattern.compile(regex); for(String date : dates) List phones = new Array List(); phones.add(" 1 1234567890123"); phones.add(" 12 123456789"); phones.add(" 123 123456"); String regex = "^\\ (?
I am helping a friend with her Java homework and I adapted a solution I used in a similar project of my own for this.
You could try to match for an extension, but there's no requirement for a file to have an extension.
There are probably dozens of way to format a phone number.
DOTALL is a flag in most recent regex libraries that makes the . There is no 100% reliable solution since the RFC is way too complex. ] )*@([a-z0-9_][-a-z0-9_]*(\.[-a-z0-9_] )*\.(aero|arpa|biz|com|coop|edu|gov|info|int|mil|museum|name|net|org|pro|travel|mobi|[a-z][a-z])|([0-9]\.[0-9]\.[0-9]\.[0-9]))(:[0-9])? $ This will make sure that every number in the IP address is between 0 and 255, unlike the version using \d which would allow for 999.999.999.999.
metacharacter match anything INCLUDING line breaks. Java Script by default does not support this since the . This is the best solution and should work 99% of the time is. If you want to match an IP within a string, get rid of the leading ^ and trailing $ to use \b (word boundaries) instead. The regular expression is only useful to validate the format of the date as entered by a user.
This free Java regular expression tester lets you test your regular expressions against any entry of your choice and clearly highlights all matches. Consult the regular expression documentation or the regular expression solutions to common problems section of this page for examples. You can create range of characters using the hyphen character such as A-Z (A to Z).