email validation in java without regular expression

Original Source: RegexLib.com After modification, two new features are added: 1. match a format containing a name like "lc 2. Four naming groups are added: name, email, user, and domain. This allows you to conveniently retrieve the corresponding information. Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->Regex re = new Regex (@ "^ ((? 'Name'. + ?) \ S * MatchCollection mc = re. Matches (@ "l c Abc@ex

Protected void check () {If (username. equals ("") | password. equals ("") {toast. maketext (context, "account or password cannot be blank", toast. length_short ). show ();} else if (! Emailformat (username) | username. length ()> 31) {toast. maketext (context, "the account is not a mailbox or the format is incorrect", toast. length_long ). show ();} else if (password. length () 15) {toast. maketext (context, "the password length should be 6 ~ 15 digits! ", Toast. length_long ). show () ;}else

[PHP] code The code is as follows:Copy code Function extract_emails ($ str ){// This regular expression extracts all emails from a string:$ Regexp = '/([a-z0-9 _.-]) + @ ([a-z0-9-]) +.) + ([a-z0-9] {2, 4}) +/I ';Preg_match_all ($ regexp, $ str, $ m );Return isset ($ m [0])? $ M [0]: array ();}$ Test_string = 'This is a test string...Test1@example.orgTest different formats:Test2@example.org;S

Method One Public Function Chkmail (ByVal Email) Dim Rep,pmail:chkmail = True:set Rep = New RegExp Rep.pattern = "([. a-za-z0-9_-]) {2,10}@ ([a-za-z0-9_-]) {2,10} (.) ( [A-za-z0-9]) {2,}) {1,4}$ " Pmail = Rep.test (Email): Set Rep = Nothing If not pmail Then chkmail = False End Function Email Address Verification One Function Isemail (

Switch (type) {Case "EMPTY":result = Writemsg (ID, msg, (val = = '));BreakCase "Number":result = Writemsg (ID, MSG, (isNaN (Val));///Is the number * *var patrn =/^[0-9]+$/;result = Writemsg (ID, MSG, (Regular (Val, patrn));BreakCase "Double":var patrn =/^[0-9.] +$/;result = Writemsg (ID, MSG, (Regular (Val, patrn));BreakCase "Date":var patrn =/^ (d{1,4}) (-|/) (d{1,2}) 2 (d{1,2}) $/;/*yyyy-mm-dd*/result = W

Java regular expression, Regular ExpressionJava Regular Expression Regular Expression 1. Two classes are provided in the

There is no problem, forgive me just a look at the results of the guy ...Verify that the format is in YYYYMMDD format.Http://www.cnblogs.com/oliver_zh/archive/2009/08/18/1548713.htmlvar p =/^ ([0-9]{3}[1-9]|[ 0-9]{2}[1-9][0-9]{1}| [0-9] {1} [1-9] [0-9] {2}| [1-9] [0-9] {3}) (((0[13578]|1[02)) (0[1-9]|[ 12][0-9]|3[01]) | ((0[469]|11) (0[1-9]|[ 12][0-9]|30)) | (02 (0[1-9]|[ 1][0-9]|2[0-8]))) | (([0-9]{2}) (0[48]|[ 2468][048]| [13579] [26]) | ((0[48]| [2468] [048]| [3579] [26]) 00)) 0229) $/;JS

Regular Expressions play an important role in verification. The following are my regular functions for verifying the time: Public Bool Mytime ( String Str) { Bool Flag = False ; String RegEx = @" ^ (\ D {2} ([02468] [048]) | ([13579] [26]) [\-\/\ s]? (0? [13578]) | (1 [02]) [\-\/\ s]? (0? [1-9]) | ([1-2] [0-9]) | (3 [01]) | (0? [469]) | (11) [\-\/\ s]? (0? [1-9]) | ([1-2] [0-9])

Regular expression way of verification, this verification comparison standard and more comprehensive, but also by clicking the Submit button to verify, this example can be validated, the specific content as follows You can also verify that Specific code The above is the entire content of this article, I hope to help you learn, but also hope that we support the cloud habitat community.

Java regular expression, Regular ExpressionI. Overview A regular expression is a string of characters describing a character sequence. It can be used to find matching items in other character sequences.

Java regular expression, Regular ExpressionI. Overview A regular expression is a string of characters describing a character sequence. It can be used to find matching items in other character sequences.

Said so much, I believe that we all understand the use of the above methods, it is said that the regular expression of the grouping in Java is how to use.Start (), End (), group () has an overloaded method that is start (int i), end (int i), group (int i) is dedicated to grouping operations, and the Mathcer class also has a GroupCount () to return the numbe

Copy the Code code as follows: $str = ' ';$pattern = "/Preg_match_all ($pattern, $str, $match);Print_r ($match);?> The results show:Array([0] = = Array([0] = =)[1] = = Array([0] = upfiles/2009/07/1246430143_1.jpg)) The above describes the Java regular expression php extracted from the string image address [regular