email validation in java without regular expression

-\\xff]+$",//only acsii characters "^\\d{6}$",//ZIP code "^ (13|15|18) [0-9]{9}$",//Mobile phone "^ (25[0-5]|2[0-4]\\d| [0-1]\\d{2}| [1-9]?\\d] \. (25[0-5]|2[0-4]\\d| [0-1]\\d{2}| [1-9]?\\d] \. (25[0-5]|2[0-4]\\d| [0-1]\\d{2}| [1-9]?\\d] \. (25[0-5]|2[0-4]\\d| [0-1]\\d{2}| [1-9]?\\d) $ ",//IP address "^\\s+$",//Non-empty "(.*)\\. (JPG|BMP|GIF|ICO|PCX|JPEG|TIF|PNG|RAW|TGA) $ ",//Picture "(.*)\\. (rar|zip|7zip|tgz) $ ",//Compressed file "^\\d{4}" (\\-|\\/|\.) \\d{1,2}\\1\\d{1,2}$ ",//Date

Positive integers: Negative integers: Integer: Positive decimals: Negative decimals: Decimals: Real numbers: Keep 1 decimal places: Keep 2 decimal places: Keep 3 decimal places: JS Regular validation of two decimal places, verifying the simplest regular expression of numbers

The most common validation that we encounter is email address verification. Common on the site. Various web scripts are also commonly used in "regular expression" (regular expression) to verify the

]) | (?: 0?) [13-9]|1[0-2]) \1 (?: 29|30) | (?: 0?) [13578]|1[02]) \1 (?: 31)) | (?:(? : 1[6-9]| [2-9] [0-9]) (?: 0 [48]| [2468] [048]| [13579] [26]) | (?: 16| [2468] [048]| [3579] [26]) 00) ([-/]?) 0?2 \2 (?: 29)) $5. Special InstructionsThe above is the most basic regular grammar rules, most of the traditional NFA engine language can be supported, including JavaScript, Java,. NET and so on.Another require

Today has been tossing for a while, finally can. Share a bit. Oh Classic.. JavaScript and regular expression validation must be integers and retain three decimal places ...

Regular Expressions-Registry validation Regular ExpressionsA regular expression is a logical formula for string manipulation, which is a "rule string" that is used to express a filtering logic for a string, using a predefined set of characters and a combination of those par

From: http://www.cnblogs.com/Dannier/archive/2010/11/06/RegExp.html Email Verification A regular expression (often abbreviated as Regexp) is a mode written with special symbols to describe one or more text strings. The regular expression is used to match the text pattern,

1. Judge Email: Domain names are composed of specific character sets, English letters, numbers, and "-" (that is, hyphens or minus signs) of each country's text, but neither the beginning nor the end can contain "-", "-" and "-" cannot appear continuously. The letters in the domain name are not case-insensitive. The domain name can be up to 60 bytes (including suffix. com,. NET,. org, and so on)./^[a-z] ([a-z0-9]*[-_]?[ a-z0-9]+) *@ ([a-z0-9]*[-_]?[

A regular expression is a logical formula for a string operation, which is a "rule string" that is used to express a filter logic for a string, using predefined specific characters and combinations of those specific characters. The purpose of regular expressions 1. Whether the given string conforms to the filtering logic of the

))] = = null) {return false; } BD = N.substr (6,4) + "-" +number (N.substr (10,2)) + "-" +number (N.substr (12,2)); var d = new Date (Bd.replace (/-/g, "/")) if (BD!= (d.getfullyear () + "-" + (D.getmonth () +1) + "-" + d.getdate ())) { C19/>return false; for (i = i >= 0; i--) { im + = (math.pow (2,i)%) * parseint (N.charat (17-i), one) } if (im% 11 != 1) {return false; } return true; Password Strength Detection: function Ops_pwd_set (obj) {var pwd = obj; if (typeof

by four hexadecimal digits. For example, \u00a9 matches the copyright symbol (?). There are two ways to use it:Method One:var re=/regular expression/;Re.test ($ ("txtID"). Val ())Method Two:$ ("txtID"). Val.match (/Regular expression/);Expressions commonly used for valida